{"id":161409,"date":"2026-07-22T12:39:17","date_gmt":"2026-07-22T12:39:17","guid":{"rendered":"https:\/\/pabau.com\/?p=161409"},"modified":"2026-08-17T11:37:21","modified_gmt":"2026-08-17T11:37:21","slug":"icd-10-code-n08","status":"publish","type":"post","link":"https:\/\/pabau.com\/fr\/diagnostic-codes\/icd-10-code-n08\/","title":{"rendered":"ICD-10 Code N08: Glomerular disorders in diseases classified elsewhere"},"content":{"rendered":"\n<script type=\"application\/ld+json\">{\"@context\":\"https:\/\/schema.org\",\"@type\":\"MedicalWebPage\",\"headline\":\"ICD-10 Code N08: Glomerular disorders in diseases classified elsewhere\",\"description\":\"ICD-10 Code N08 (Glomerular disorders in diseases classified elsewhere) is a billable manifestation code. Learn sequencing rules, documentation requirements, and related codes.\",\"url\":\"https:\/\/pabau.com\/diagnostic-codes\/icd-10-code-n08\/\",\"audience\":{\"@type\":\"MedicalAudience\",\"audienceType\":\"Clinician\"},\"reviewedBy\":{\"@type\":\"Person\",\"name\":\"Dr Vanja Kitanova\",\"jobTitle\":\"Medical Reviewer\",\"affiliation\":{\"@type\":\"Organization\",\"name\":\"Pabau\"},\"knowsAbout\":[\"Medical Coding\",\"Clinical Documentation\",\"Healthcare Billing\",\"Clinical Safety\"],\"sameAs\":\"https:\/\/pabau.com\/blog\/author\/vanja\/\"},\"datePublished\":\"2026-07-10\",\"dateModified\":\"2026-07-10\"}<\/script>\n\n\n        <div id=\"key_takeaways\">\n            <div class=\"header\">\n                                    <img decoding=\"async\" src=\"https:\/\/pabau.com\/wp-content\/uploads\/2025\/12\/Key-Takeaways-Icon.svg\" alt=\"Key Takeaways\" height=\"42\" width=\"42\">\n                                <h3>Key Takeaways<\/h3>\n            <\/div>\n            <div class=\"list\">\n                                                            <div class=\"item\">\n                            <div>\n                                <svg width=\"20\" height=\"27\" viewBox=\"0 0 20 27\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n                                    <path\n                                        d=\"M18.6223 14.3857C19.1246 13.8975 19.1246 13.1045 18.6223 12.6162L12.1938 6.36621C11.6915 5.87793 10.8759 5.87793 10.3737 6.36621C9.87143 6.85449 9.87143 7.64746 10.3737 8.13574L14.6125 12.2529H2.28571C1.57455 12.2529 1 12.8115 1 13.5029C1 14.1943 1.57455 14.7529 2.28571 14.7529H14.6085L10.3777 18.8701C9.87545 19.3584 9.87545 20.1514 10.3777 20.6396C10.8799 21.1279 11.6955 21.1279 12.1978 20.6396L18.6263 14.3896L18.6223 14.3857Z\"\n                                        fill=\"#3D3D46\" \/>\n                                <\/svg>\n                            <\/div>\n                            <p>ICD-10 Code N08 identifies glomerular disorders that occur as a manifestation of another classified systemic disease, such as amyloidosis, multiple myeloma, or sickle-cell disease<\/p>\n                        <\/div>\n                                                                                <div class=\"item\">\n                            <div>\n                                <svg width=\"20\" height=\"27\" viewBox=\"0 0 20 27\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n                                    <path\n                                        d=\"M18.6223 14.3857C19.1246 13.8975 19.1246 13.1045 18.6223 12.6162L12.1938 6.36621C11.6915 5.87793 10.8759 5.87793 10.3737 6.36621C9.87143 6.85449 9.87143 7.64746 10.3737 8.13574L14.6125 12.2529H2.28571C1.57455 12.2529 1 12.8115 1 13.5029C1 14.1943 1.57455 14.7529 2.28571 14.7529H14.6085L10.3777 18.8701C9.87545 19.3584 9.87545 20.1514 10.3777 20.6396C10.8799 21.1279 11.6955 21.1279 12.1978 20.6396L18.6263 14.3896L18.6223 14.3857Z\"\n                                        fill=\"#3D3D46\" \/>\n                                <\/svg>\n                            <\/div>\n                            <p>N08 is a billable ICD-10-CM code valid for HIPAA-covered transactions from October 1, 2025 through September 30, 2026<\/p>\n                        <\/div>\n                                                                                <div class=\"item\">\n                            <div>\n                                <svg width=\"20\" height=\"27\" viewBox=\"0 0 20 27\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n                                    <path\n                                        d=\"M18.6223 14.3857C19.1246 13.8975 19.1246 13.1045 18.6223 12.6162L12.1938 6.36621C11.6915 5.87793 10.8759 5.87793 10.3737 6.36621C9.87143 6.85449 9.87143 7.64746 10.3737 8.13574L14.6125 12.2529H2.28571C1.57455 12.2529 1 12.8115 1 13.5029C1 14.1943 1.57455 14.7529 2.28571 14.7529H14.6085L10.3777 18.8701C9.87545 19.3584 9.87545 20.1514 10.3777 20.6396C10.8799 21.1279 11.6955 21.1279 12.1978 20.6396L18.6263 14.3896L18.6223 14.3857Z\"\n                                        fill=\"#3D3D46\" \/>\n                                <\/svg>\n                            <\/div>\n                            <p>N08 is a manifestation code and can never be sequenced as the principal diagnosis; the etiology code for the underlying systemic disease always comes first<\/p>\n                        <\/div>\n                                                                                <div class=\"item\">\n                            <div>\n                                <svg width=\"20\" height=\"27\" viewBox=\"0 0 20 27\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n                                    <path\n                                        d=\"M18.6223 14.3857C19.1246 13.8975 19.1246 13.1045 18.6223 12.6162L12.1938 6.36621C11.6915 5.87793 10.8759 5.87793 10.3737 6.36621C9.87143 6.85449 9.87143 7.64746 10.3737 8.13574L14.6125 12.2529H2.28571C1.57455 12.2529 1 12.8115 1 13.5029C1 14.1943 1.57455 14.7529 2.28571 14.7529H14.6085L10.3777 18.8701C9.87545 19.3584 9.87545 20.1514 10.3777 20.6396C10.8799 21.1279 11.6955 21.1279 12.1978 20.6396L18.6263 14.3896L18.6223 14.3857Z\"\n                                        fill=\"#3D3D46\" \/>\n                                <\/svg>\n                            <\/div>\n                            <p>Pabau&rsquo;s claims management software helps clinicians document etiology-manifestation pairs accurately, reducing N08 claim denials before submission<\/p>\n                        <\/div>\n                                                <\/div>\n        <\/div>\n    \n\n\n<p class=\"wp-block-paragraph\">ICD-10 Code N08 identifies glomerular disorders that occur as a manifestation of another disease classified elsewhere in ICD-10-CM. It&rsquo;s billable, but never stands alone: per the <a href=\"https:\/\/www.cms.gov\/medicare\/coding-billing\/icd-10-codes\" target=\"_blank\" rel=\"nofollow noopener\">CMS ICD-10 coding guidelines<\/a>, manifestation codes like N08 require an etiology code for the underlying systemic disease, sequenced first.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This reference covers N08&rsquo;s definition, billable status, sequencing rules, documentation requirements, related codes in the N00-N08 range, and DRG context for the 2026 edition.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Coders working with renal and nephrology billing will encounter N08 frequently, particularly when amyloidosis or multiple myeloma is driving the glomerular involvement. It&rsquo;s often coded alongside kidney failure codes like N19, since the systemic disease, the glomerular manifestation, and the degree of kidney failure are usually documented and billed together.<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe title=\"ICD-10 Revisions: Stay Updated or Fall Behind\" width=\"800\" height=\"450\" src=\"https:\/\/www.youtube.com\/embed\/bqAyb-BCA0w?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<h2 id=\"h-icd-10-code-n08-definition-and-billable-status\" class=\"wp-block-heading\">ICD-10 Code N08: Definition and billable status<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">ICD-10 Code N08 describes glomerular disorders in diseases classified elsewhere. It is a billable, specific ICD-10-CM diagnosis code valid for reimbursement in all HIPAA-covered transactions. The 2026 edition of ICD-10-CM N08 became effective on October 1, 2025, and remains valid through September 30, 2026.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The code sits at the end of the N00-N08 glomerular diseases block. Unlike N00 through N07, which identify primary glomerular diseases directly, N08 is reserved exclusively for glomerular damage that occurs as a consequence of another classified condition. The kidneys are not the origin of the disease; they are a target organ of a systemic process coded elsewhere.<\/p>\n\n\n\n<table style=\"width:100%;border-collapse:separate;border-spacing:0;border-radius:12px;overflow:hidden;font-size:15px;line-height:1.5;margin:1.5em 0 2em;box-shadow:0 2px 12px rgba(0,0,0,0.08)\">\n<thead>\n<tr>\n<th style=\"background:#121D36;color:#fff;padding:14px 16px;text-align:left;font-weight:600;font-size:14px;letter-spacing:0.3px;border-bottom:2px solid #2BADD4\">Field<\/th>\n<th style=\"background:#121D36;color:#fff;padding:14px 16px;text-align:left;font-weight:600;font-size:14px;letter-spacing:0.3px;border-bottom:2px solid #2BADD4\">Detail<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Code<\/td>\n<td style=\"padding:12px 16px;color:#374151\">N08<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Full description<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Glomerular disorders in diseases classified elsewhere<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Billable<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Yes<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">ICD-10-CM edition<\/td>\n<td style=\"padding:12px 16px;color:#374151\">2026 (effective October 1, 2025)<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Code block<\/td>\n<td style=\"padding:12px 16px;color:#374151\">N00-N08 (Glomerular diseases)<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Code type<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Manifestation code<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Principal diagnosis<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Not allowed; must follow etiology code<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Valid for HIPAA transactions<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Yes, Oct 1, 2025 through Sep 30, 2026<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n<h2 id=\"h-clinical-description-glomerular-disorders-in-diseases-classified-elsewhere\" class=\"wp-block-heading\">Clinical description: Glomerular disorders in diseases classified elsewhere<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Glomerular injury can result from systemic conditions that attack the kidneys secondarily. ICD-10 Code N08 captures this secondary nephropathy: the glomerulus is damaged not by a primary renal disease, but by a systemic condition coded under a different chapter.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The clinical presentation often includes proteinuria, hematuria, and declining glomerular filtration rate. These findings point to the underlying disease rather than a standalone kidney condition.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The range of underlying conditions is broad. Clinicians and coders working with nephrology, rheumatology, endocrinology, and oncology encounters will encounter this code regularly. See how structured medical forms at each encounter capture the systemic disease link required to support N08 coding.<\/p>\n\n\n\n<h3 id=\"h-underlying-conditions-that-drive-n08-coding\" class=\"wp-block-heading\">Underlying conditions that drive N08 coding<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The most common underlying diseases paired with ICD-10 Code N08 are amyloidosis, multiple myeloma, gout, sickle-cell disease, and congenital syphilis. Each requires its own etiology code sequenced before N08.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Diabetes, lupus, and Goodpasture syndrome are common sources of confusion here. Each has its own combination code that already captures the renal manifestation directly, so none of them are ever paired with N08 \u2014 see the excludes note below. The table below maps the genuine N08 partners to their ICD-10-CM etiology code family.<\/p>\n\n\n\n<table style=\"width:100%;border-collapse:separate;border-spacing:0;border-radius:12px;overflow:hidden;font-size:15px;line-height:1.5;margin:1.5em 0 2em;box-shadow:0 2px 12px rgba(0,0,0,0.08)\">\n<thead>\n<tr>\n<th style=\"background:#121D36;color:#fff;padding:14px 16px;text-align:left;font-weight:600;font-size:14px;letter-spacing:0.3px;border-bottom:2px solid #2BADD4\">Underlying condition<\/th>\n<th style=\"background:#121D36;color:#fff;padding:14px 16px;text-align:left;font-weight:600;font-size:14px;letter-spacing:0.3px;border-bottom:2px solid #2BADD4\">Etiology ICD-10-CM code family<\/th>\n<th style=\"background:#121D36;color:#fff;padding:14px 16px;text-align:left;font-weight:600;font-size:14px;letter-spacing:0.3px;border-bottom:2px solid #2BADD4\">Clinical feature driving N08<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Amyloidosis<\/td>\n<td style=\"padding:12px 16px;color:#374151\">E85.- (amyloidosis codes)<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Amyloid fibril deposition in glomeruli<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Multiple myeloma<\/td>\n<td style=\"padding:12px 16px;color:#374151\">C90.0- (multiple myeloma codes)<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Light chain cast nephropathy, proteinuria<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Gout<\/td>\n<td style=\"padding:12px 16px;color:#374151\">M1A.-, M10.- (gout codes)<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Urate crystal deposition, hyperuricemic nephropathy<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Sickle-cell disease<\/td>\n<td style=\"padding:12px 16px;color:#374151\">D57.0-D57.8 (sickle-cell disease codes)<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Vaso-occlusive glomerular injury<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Congenital syphilis<\/td>\n<td style=\"padding:12px 16px;color:#374151\">A50.5 (congenital syphilis)<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Congenital syphilitic nephrotic syndrome<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n<p class=\"wp-block-paragraph\">Amyloidosis is one of the more frequent pairings with ICD-10 Code N08 in clinical practice. Renal amyloidosis, coded to the appropriate E85.- subcategory, is paired with N08 when biopsy-confirmed amyloid deposition is the documented glomerular manifestation. Verify the exact amyloidosis subtype before selecting the etiology code.<\/p>\n\n\n\n<h2 id=\"h-icd-10-cm-coding-guidelines-for-n08\" class=\"wp-block-heading\">ICD-10-CM coding guidelines for N08<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The etiology-manifestation convention governs how ICD-10 Code N08 is sequenced. Section I of the ICD-10-CM Official Guidelines for Coding and Reporting establishes this convention: the underlying disease (etiology) is sequenced first, and the manifestation code follows as an additional code.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">N08 is printed in italics in the ICD-10-CM tabular list and enclosed in brackets after the underlying disease code. That formatting signals it can never be used as a principal diagnosis.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The <a href=\"https:\/\/icd.who.int\/browse10\/2019\/en\" target=\"_blank\" rel=\"nofollow noopener\">WHO ICD-10 browser<\/a> and the <a href=\"https:\/\/icd10cmtool.cdc.gov\/\" target=\"_blank\" rel=\"nofollow noopener\">CDC\/NCHS ICD-10-CM web tool<\/a> both confirm N08&rsquo;s manifestation status. Coders should use these official tools to verify code applicability before submission, especially when uncertain about an etiology pairing.<\/p>\n\n\n\n<h3 id=\"h-etiology-manifestation-sequencing-rule-explained\" class=\"wp-block-heading\">Etiology-manifestation sequencing rule explained<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Follow these steps for every N08 encounter:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Identify and code the underlying systemic disease.<\/strong> This is always the principal or first-listed diagnosis. For diabetic nephropathy, this is E11.21 (type 2 diabetes mellitus with diabetic nephropathy) or the appropriate E08-E13 variant.<\/li>\n\n\n\n<li><strong>Add ICD-10 Code N08 as an additional code.<\/strong> N08 follows the etiology code. It documents the glomerular manifestation of the systemic disease.<\/li>\n\n\n\n<li><strong>Never use N08 as a standalone or principal diagnosis.<\/strong> Claims submitted with N08 as the principal diagnosis will be rejected. The manifestation code convention is enforced at the payer level.<\/li>\n\n\n\n<li><strong>Document the explicit clinical link.<\/strong> The physician note must connect the systemic disease to the glomerular involvement. \u00ab\u00a0Glomerular disease due to SLE\u00a0\u00bb is acceptable; \u00ab\u00a0SLE, glomerular disease\u00a0\u00bb without a stated relationship is not.<\/li>\n<\/ol>\n\n\n\n<h3 id=\"h-includes-and-excludes-notes-for-n08\" class=\"wp-block-heading\">Includes and excludes notes for N08<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The N08 tabular entry carries an \u00ab\u00a0Includes\u00a0\u00bb note and applies to glomerular disorders occurring in the context of conditions classified elsewhere in ICD-10-CM. Coders should be aware of the following:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Includes:<\/strong> Glomerular disorders in diseases such as amyloidosis, disseminated intravascular coagulation, gout, multiple myeloma, polyarteritis nodosa, septicemia, sickle-cell disease, thrombotic thrombocytopenic purpura, and Waldenstrom macroglobulinemia.<\/li>\n\n\n\n<li><strong>Excludes1:<\/strong> N08 carries a substantial Excludes1 note. These conditions must never be coded with N08, because a dedicated combination code already captures the renal manifestation directly: diabetic glomerulonephritis or nephropathy (E08-E13 with the .21 suffix, such as E11.21), lupus\/SLE glomerular disease (M32.14), Goodpasture syndrome or anti-GBM disease (M31.0), Wegener&rsquo;s granulomatosis (M31.31), gonococcal infection (A54.21), hemolytic-uremic syndrome (D59.3-), mumps (B26.83), syphilis (A52.75), pyelonephritis (N16), and renal tubulo-interstitial disorders (N16).<\/li>\n\n\n\n<li><strong>Code block context:<\/strong> N08 is the final code in the N00-N08 glomerular diseases block. The block does not include conditions classified under nephritis syndrome without further specification (see N05-N07 for that).<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Review HIPAA compliance requirements when submitting N08 claims. Practice management software like Pabau offers HIPAA compliance guidance to help electronic transactions represent codes correctly under the ICD-10-CM standard.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pelvic health practices manage many of these diagnoses in <a href=\"https:\/\/pabau.com\/industry\/pelvic-health-software\/\">software built for pelvic health<\/a>.<\/p>\n\n\n\n<h2 id=\"h-documentation-requirements-for-n08\" class=\"wp-block-heading\">Documentation requirements for N08<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Coding N08 correctly depends entirely on what the physician documents. Without the right elements in the clinical note, coders cannot support the diagnosis or the etiology-manifestation pairing. Incomplete documentation is the second most common cause of N08 claim denials, after sequencing errors.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Consider using paperless clinical documentation systems that prompt clinicians to capture the systemic disease and its renal complication in a structured format at each encounter. This reduces the back-and-forth between coders and clinicians for clarification queries.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The physician note must include three elements to support ICD-10 Code N08:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Confirmed underlying systemic disease.<\/strong> The note must state the systemic condition with sufficient specificity to assign the correct etiology code. \u00ab\u00a0Diabetes mellitus type 2\u00a0\u00bb alone is insufficient; \u00ab\u00a0type 2 diabetes mellitus with diabetic nephropathy\u00a0\u00bb maps to E11.21.<\/li>\n\n\n\n<li><strong>Documented glomerular involvement.<\/strong> Clinical evidence must be present: proteinuria on urinalysis, hematuria, biopsy findings showing glomerular pathology, or declining eGFR attributed to glomerular damage. A reference to \u00ab\u00a0kidney disease\u00a0\u00bb without specifying glomerular involvement does not support N08 over other renal codes.<\/li>\n\n\n\n<li><strong>Explicit causal link between the systemic disease and the glomerular disorder.<\/strong> The note must state the relationship. Phrases such as \u00ab\u00a0glomerular disease due to,\u00a0\u00bb \u00ab\u00a0nephropathy secondary to,\u00a0\u00bb or \u00ab\u00a0renal manifestation of\u00a0\u00bb establish this link. Coders cannot infer the connection from two diagnoses listed separately.<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">See how structured digital intake forms can be configured to prompt clinicians for this documentation at the point of care, before the note reaches the coding team.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/cdn.pabau.com\/cdn\/attachments\/pulse\/content-engine\/diagnostic_codes\/icd-10-code-n08\/customizable-consent-and-intake-forms.webp\" alt=\"Customizable consent and intake forms\"\/><figcaption class=\"wp-element-caption\"><em>Customizable consent and intake forms<\/em><\/figcaption><\/figure>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 id=\"h-common-documentation-and-coding-errors-to-avoid\" class=\"wp-block-heading\">Common documentation and coding errors to avoid<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Using N08 as the sole diagnosis code.<\/strong> N08 must never appear alone on a claim. Always pair it with the etiology code first.<\/li>\n\n\n\n<li><strong>Selecting the wrong glomerular code.<\/strong> If the glomerular disease is primary (not secondary to a systemic condition), use N00-N07, not N08. Choosing N08 for primary glomerulonephritis misrepresents the clinical picture.<\/li>\n\n\n\n<li><strong>Omitting the causal linkage statement.<\/strong> Two separate diagnoses in the same note do not automatically constitute an etiology-manifestation pair. The physician must state the relationship explicitly.<\/li>\n\n\n\n<li><strong>Using an outdated or invalid etiology code.<\/strong> Verify each etiology code against the current fiscal year&rsquo;s ICD-10-CM edition. Retired codes will trigger claim rejection regardless of N08 sequencing.<\/li>\n\n\n\n<li><strong>Coding chronic kidney disease (CKD) stage instead of N08.<\/strong> When the glomerular disorder is the mechanism, N08 is the appropriate manifestation code. CKD stage codes (N18.-) describe severity, not mechanism, and may be added alongside N08 when both are documented.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Track documentation query rates by provider using time-saving practice features. Persistent query patterns signal a training opportunity for the clinical team on N08 documentation standards.<\/p>\n\n\n        <div id=\"book_a_demo\">\n            <div class=\"left-side\">\n                <div class=\"logo\">\n                    <img decoding=\"async\"\n                        src=\"https:\/\/pabau.com\/wp-content\/uploads\/2026\/01\/Logo.svg\"\n                        alt=\"Logo\"\n                        loading=\"lazy\"\n                    \/>\n                <\/div>\n\n                <h3 class=\"heading\">\n                    Reduce coding errors with structured clinical documentation                <\/h3>\n\n                <p class=\"description\">\n                    Pabau&rsquo;s claims management tools help renal and nephrology practices document etiology-manifestation pairs accurately, so ICD-10 Code N08 claims submit correctly the first time.                <\/p>\n\n                <div class=\"button-group\">\n                    <a href=\"\/book-demo\/\" class=\"btn btn-scale-effect btn-cta-color btn-md\">\n                        <span class=\"btn-text\">Book a demo<\/span>\n                        <div class=\"btn-icon btn-icon-right\" aria-hidden=\"true\">\n                            <svg\n                                width=\"14\"\n                                height=\"12\"\n                                viewBox=\"0 0 14 12\"\n                                fill=\"none\"\n                                xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\n                            >\n                                <path\n                                    d=\"M0.75 4.77295C0.335786 4.77295 0 5.10874 0 5.52295C0 5.93716 0.335786 6.27295 0.75 6.27295V5.52295V4.77295ZM13.2803 6.05328C13.5732 5.76039 13.5732 5.28551 13.2803 4.99262L8.50736 0.219648C8.21447 -0.073245 7.73959 -0.073245 7.4467 0.219648C7.15381 0.512542 7.15381 0.987415 7.4467 1.28031L11.6893 5.52295L7.4467 9.76559C7.15381 10.0585 7.15381 10.5334 7.4467 10.8263C7.73959 11.1191 8.21447 11.1191 8.50736 10.8263L13.2803 6.05328ZM0.75 5.52295V6.27295L12.75 6.27295V5.52295V4.77295L0.75 4.77295V5.52295Z\"\n                                    fill=\"currentColor\"\n                                ><\/path>\n                            <\/svg>\n                        <\/div>\n                    <\/a>\n                <\/div>\n            <\/div>\n\n            <div class=\"right-side\">\n                <img decoding=\"async\"\n                    src=\"https:\/\/pabau.com\/wp-content\/uploads\/2026\/01\/Home-Page-Concept-4.webp\"\n                    alt=\"Pabau practice management platform\"\n                    loading=\"lazy\"\n                \/>\n            <\/div>\n        <\/div>\n        \n\n\n<h2 id=\"h-related-icd-10-cm-codes-in-the-n00-n08-range\" class=\"wp-block-heading\">Related ICD-10-CM codes in the N00-N08 range<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">ICD-10 Code N08 is the last code in the N00-N08 glomerular diseases block. Selecting the right code depends on whether the glomerular disease is primary (its own condition) or secondary (a manifestation of something else). The table below summarizes the full code range. Consult the <a href=\"https:\/\/www.aapc.com\/codes\/icd-10-codes-range\/\" target=\"_blank\" rel=\"nofollow noopener\">AAPC ICD-10-CM code lookup<\/a> for the most current code descriptions and instructional notes.<\/p>\n\n\n\n<table style=\"width:100%;border-collapse:separate;border-spacing:0;border-radius:12px;overflow:hidden;font-size:15px;line-height:1.5;margin:1.5em 0 2em;box-shadow:0 2px 12px rgba(0,0,0,0.08)\">\n<thead>\n<tr>\n<th style=\"background:#121D36;color:#fff;padding:14px 16px;text-align:left;font-weight:600;font-size:14px;letter-spacing:0.3px;border-bottom:2px solid #2BADD4\">Code<\/th>\n<th style=\"background:#121D36;color:#fff;padding:14px 16px;text-align:left;font-weight:600;font-size:14px;letter-spacing:0.3px;border-bottom:2px solid #2BADD4\">Description<\/th>\n<th style=\"background:#121D36;color:#fff;padding:14px 16px;text-align:left;font-weight:600;font-size:14px;letter-spacing:0.3px;border-bottom:2px solid #2BADD4\">Primary or secondary?<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">N00<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Acute nephritic syndrome<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Primary glomerular disease<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">N01<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Rapidly progressive nephritic syndrome<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Primary glomerular disease<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">N02<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Recurrent and persistent hematuria<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Primary glomerular disease<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">N03<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Chronic nephritic syndrome<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Primary glomerular disease<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">N04<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Nephrotic syndrome<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Primary glomerular disease<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">N05<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Unspecified nephritic syndrome<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Primary glomerular disease<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">N06<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Isolated proteinuria with specified morphological lesion<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Primary glomerular disease<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">N07<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Hereditary nephropathy, not elsewhere classified<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Primary glomerular disease<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">N08<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Glomerular disorders in diseases classified elsewhere<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Secondary \/ manifestation code<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n<h3 id=\"h-how-n08-differs-from-n00-n07-codes\" class=\"wp-block-heading\">How N08 differs from N00-N07 codes<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">N00 through N07 describe glomerular diseases that originate in the kidney. They&rsquo;re coded directly, with the glomerular condition as the principal diagnosis. ICD-10 Code N08 is the structural opposite: the kidney is the secondary site, and the disease originates elsewhere.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A patient with primary membranous nephropathy gets a code from N03 or N04. A patient with membranous nephropathy caused by amyloidosis gets N08, preceded by the amyloidosis etiology code.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This distinction matters for DRG assignment, clinical research, and quality reporting. Using N08 where N04 applies (or vice versa) misrepresents the patient&rsquo;s disease mechanism and can affect payment accuracy. Rheumatology coders handle this same primary-versus-secondary distinction with codes like M34.2, so the discipline carries across specialties.<\/p>\n\n\n\n<h2 id=\"h-drg-assignment-and-reimbursement-considerations\" class=\"wp-block-heading\">DRG assignment and reimbursement considerations<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">ICD-10 Code N08 maps to MS-DRG groups within the broader renal failure category: MS-DRG 682 (Renal Failure with MCC), MS-DRG 683 (Renal Failure with CC), or MS-DRG 684 (Renal Failure without CC\/MCC), depending on the principal diagnosis and documented complications.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Because N08 is always an additional code, the MS-DRG assignment is driven primarily by the etiology code and any major complication or comorbidity (MCC\/CC) designations.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">N08 itself carries a complication\/comorbidity (CC) designation in the CMS MS-DRG Definitions Manual. Its presence as an additional diagnosis can increase the DRG weight and reimbursement for an inpatient encounter, so failing to code N08 when it&rsquo;s documented and supported leaves that CC impact on the table.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Verify specific DRG assignments against the current CMS ICD-10 coding resources, as MS-DRG groupings are updated annually with each ICD-10-CM edition. Codes like M35.3 go through the same CC\/MCC classification system, so the sequencing habits that protect N08 reimbursement transfer directly.<\/p>\n\n\n\n<h2 id=\"h-how-practice-management-software-supports-accurate-n08-coding\" class=\"wp-block-heading\">How practice management software supports accurate N08 coding<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The documentation workflow drives most N08 coding failures. The coder knows the sequencing rule, but the physician note often skips the explicit causal linkage, so the code cannot be supported. Structured clinical documentation built into practice management software fixes this at the point of care rather than at the claims desk.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pabau&rsquo;s claims management software helps nephrology, internal medicine. Structured note templates prompt clinicians for the systemic disease, the glomerular complication, and the explicit linkage statement, so the coding team receives notes that already contain the three elements N08 requires.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/cdn.pabau.com\/cdn\/attachments\/pulse\/content-engine\/diagnostic_codes\/icd-10-code-n08\/automate-claims-through-healthcode.webp\" alt=\"Automate claims and billing with Pabau\"\/><figcaption class=\"wp-element-caption\"><em>Automate claims and billing with Pabau<\/em><\/figcaption><\/figure>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Several practical benefits follow from this workflow approach:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Fewer coding queries:<\/strong> When notes arrive with complete documentation, coders do not need to send clarification requests back to the physician, which adds days to the billing cycle.<\/li>\n\n\n\n<li><strong>Reduced denial rate:<\/strong> Claims for ICD-10 Code N08 that include a valid etiology code, documented glomerular involvement, and a causal link statement are far less likely to deny than those missing any one element.<\/li>\n\n\n\n<li><strong>CC capture:<\/strong> Because N08 carries a CC designation, capturing it accurately on every supported encounter improves the DRG weight and reimbursement for inpatient cases.<\/li>\n\n\n\n<li><strong>Audit trail:<\/strong> The client record features in Pabau preserve the full clinical note alongside the coded encounter, which supports retrospective audit and payer queries without chasing paper records.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Clinicians concerned about patient data security can configure Pabau&rsquo;s access controls so only authorized clinical and billing staff interact with sensitive renal diagnosis records. <\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Related ICD-10 codes<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/pabau.com\/diagnostic-codes\/icd-10-code-n10-acute-pyelonephritis\/\">ICD-10 code N10 \u2014 Acute Pyelonephritis<\/a><\/li>\n\n\n<li><a href=\"https:\/\/pabau.com\/diagnostic-codes\/icd-10-code-n12\/\">ICD-10 Code N12 \u2014 Tubulo-Interstitial Nephritis<\/a><\/li>\n\n\n<li><a href=\"https:\/\/pabau.com\/diagnostic-codes\/icd-10-code-n16\/\">ICD-10 code N16 \u2014 Renal tubulo-interstitial disorders in diseases classified elsewhere<\/a><\/li>\n<\/ul>\n\n\n\n<h2 id=\"h-conclusion\" class=\"wp-block-heading\">Conclusion<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">ICD-10 Code N08 is straightforward once the manifestation convention is understood: the systemic disease drives the code sequence, and N08 follows as the documented renal manifestation. The code is billable, carries a CC designation for inpatient encounters, and is valid for the 2026 fiscal year. The risk is in the documentation, not the code itself.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pabau&rsquo;s structured clinical documentation and claims management tools help nephrology, rheumatology, and internal medicine practices capture the etiology-manifestation pairs that N08 requires, before claims reach the payer. To see how this works across a multi-specialty practice.<\/p>\n\n\n        <div id=\"expert_picks\">\n            <div class=\"header\">\n                                    <img decoding=\"async\" src=\"https:\/\/pabau.com\/wp-content\/uploads\/2025\/11\/Expert-Picks.svg\" alt=\"Continue your research\" height=\"42\" width=\"42\">\n                                <h3>Continue your research<\/h3>\n            <\/div>\n            <div class=\"content\">\n                                                            <div class=\"item\">\n                            <div>\n                                <svg width=\"20\" height=\"27\" viewBox=\"0 0 20 27\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n                                    <path\n                                        d=\"M18.6223 14.3857C19.1246 13.8975 19.1246 13.1045 18.6223 12.6162L12.1938 6.36621C11.6915 5.87793 10.8759 5.87793 10.3737 6.36621C9.87143 6.85449 9.87143 7.64746 10.3737 8.13574L14.6125 12.2529H2.28571C1.57455 12.2529 1 12.8115 1 13.5029C1 14.1943 1.57455 14.7529 2.28571 14.7529H14.6085L10.3777 18.8701C9.87545 19.3584 9.87545 20.1514 10.3777 20.6396C10.8799 21.1279 11.6955 21.1279 12.1978 20.6396L18.6263 14.3896L18.6223 14.3857Z\"\n                                        fill=\"#54B2D3\" \/>\n                                <\/svg>\n                            <\/div>\n                            <p><strong>Managing patients with kidney disease day to day?<\/strong> Our <a href=\"https:\/\/pabau.com\/templates\/renal-diet-meal-plan\/\">Renal diet meal plan<\/a> template gives care teams a ready-made resource to hand patients alongside their N08 diagnosis.<\/p>\n                        <\/div>\n                                                                                <div class=\"item\">\n                            <div>\n                                <svg width=\"20\" height=\"27\" viewBox=\"0 0 20 27\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n                                    <path\n                                        d=\"M18.6223 14.3857C19.1246 13.8975 19.1246 13.1045 18.6223 12.6162L12.1938 6.36621C11.6915 5.87793 10.8759 5.87793 10.3737 6.36621C9.87143 6.85449 9.87143 7.64746 10.3737 8.13574L14.6125 12.2529H2.28571C1.57455 12.2529 1 12.8115 1 13.5029C1 14.1943 1.57455 14.7529 2.28571 14.7529H14.6085L10.3777 18.8701C9.87545 19.3584 9.87545 20.1514 10.3777 20.6396C10.8799 21.1279 11.6955 21.1279 12.1978 20.6396L18.6263 14.3896L18.6223 14.3857Z\"\n                                        fill=\"#54B2D3\" \/>\n                                <\/svg>\n                            <\/div>\n                            <p><strong>Want a faster way to structure claims?<\/strong> The <a href=\"https:\/\/pabau.com\/templates\/chiropractic-billing-cheat-sheet\/\">Chiropractic billing cheat sheet<\/a> shows how a structured billing reference reduces denials for any specialty.<\/p>\n                        <\/div>\n                                                                                <div class=\"item\">\n                            <div>\n                                <svg width=\"20\" height=\"27\" viewBox=\"0 0 20 27\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n                                    <path\n                                        d=\"M18.6223 14.3857C19.1246 13.8975 19.1246 13.1045 18.6223 12.6162L12.1938 6.36621C11.6915 5.87793 10.8759 5.87793 10.3737 6.36621C9.87143 6.85449 9.87143 7.64746 10.3737 8.13574L14.6125 12.2529H2.28571C1.57455 12.2529 1 12.8115 1 13.5029C1 14.1943 1.57455 14.7529 2.28571 14.7529H14.6085L10.3777 18.8701C9.87545 19.3584 9.87545 20.1514 10.3777 20.6396C10.8799 21.1279 11.6955 21.1279 12.1978 20.6396L18.6263 14.3896L18.6223 14.3857Z\"\n                                        fill=\"#54B2D3\" \/>\n                                <\/svg>\n                            <\/div>\n                            <p><strong>Need a cleaner note format for etiology-manifestation pairs?<\/strong> The <a href=\"https:\/\/pabau.com\/templates\/apso-note-template\/\">APSO note template<\/a> helps clinicians document the causal linkage that N08 claims require.<\/p>\n                        <\/div>\n                                                <\/div>\n        <\/div>\n    \n\n\n<h2 id=\"h-frequently-asked-questions\" class=\"wp-block-heading\">Frequently asked questions<\/h2>\n\n\n\n<div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-1784718659609\"><h3 class=\"schema-faq-question\">What is ICD-10 Code N08 used for?<\/h3> <p class=\"schema-faq-answer\">ICD-10 Code N08 is used to document glomerular disorders that occur as a manifestation of an underlying systemic disease classified elsewhere in ICD-10-CM, such as amyloidosis, multiple myeloma, or sickle-cell disease. It identifies that the kidney damage is secondary to a systemic condition, not a primary renal disease. The code is always paired with an etiology code for the underlying condition, which is sequenced first.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1784718659610\"><h3 class=\"schema-faq-question\">Is N08 a billable ICD-10-CM code?<\/h3> <p class=\"schema-faq-answer\">Yes, N08 is a billable and specific ICD-10-CM diagnosis code valid for reimbursement in all HIPAA-covered transactions. The 2026 edition became effective October 1, 2025, and is valid through September 30, 2026. It cannot be billed as a standalone or principal diagnosis; it requires an etiology code sequenced before it.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1784718659611\"><h3 class=\"schema-faq-question\">Can N08 be used as a standalone diagnosis code?<\/h3> <p class=\"schema-faq-answer\">No. N08 is a manifestation code by convention, which means it can never appear as the sole or principal diagnosis on a claim. The ICD-10-CM etiology-manifestation convention requires the underlying systemic disease code to be listed first. A claim submitted with N08 as the only diagnosis or as the principal diagnosis will be rejected by payers.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1784718659612\"><h3 class=\"schema-faq-question\">How do you sequence N08 with an etiology code?<\/h3> <p class=\"schema-faq-answer\">Sequence the etiology code first, then add N08 as an additional diagnosis. For example, renal amyloidosis, coded to the appropriate E85.- subcategory, is listed as the principal diagnosis, followed by N08 as an additional code documenting the glomerular manifestation. The physician note must explicitly state the causal relationship between the systemic disease and the glomerular disorder.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1784718659613\"><h3 class=\"schema-faq-question\">What documentation is required to support a diagnosis of N08?<\/h3> <p class=\"schema-faq-answer\">The physician note must include three elements: the confirmed underlying systemic disease with sufficient specificity to assign the etiology code, clinical evidence of glomerular involvement (proteinuria, biopsy findings, or declining eGFR attributed to glomerular damage), and an explicit statement linking the systemic disease to the glomerular disorder. Without all three, the code cannot be supported on audit or payer review.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1784718659614\"><h3 class=\"schema-faq-question\">Which DRG does ICD-10 Code N08 map to?<\/h3> <p class=\"schema-faq-answer\">ICD-10 Code N08 carries a complication\/comorbidity (CC) designation in the CMS MS-DRG Definitions Manual. As an additional code, it influences the DRG assignment based on the principal diagnosis. Its CC status means it can increase the DRG weight and reimbursement for inpatient encounters where it is accurately documented and coded. Verify the specific MS-DRG grouping against the current CMS definitions manual, as assignments are updated annually.<\/p> <\/div> <\/div>\n","protected":false},"excerpt":{"rendered":"<p>ICD-10 Code N08 identifies glomerular disorders that occur as a manifestation of another disease classified elsewhere in ICD-10-CM. It&rsquo;s billable, but never stands alone: per the CMS ICD-10 coding guidelines, manifestation codes like N08 require an etiology code for the underlying systemic disease, sequenced first. This reference covers N08&rsquo;s definition, billable status, sequencing rules, documentation [&hellip;]<\/p>\n","protected":false},"author":77,"featured_media":161407,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_linkdex":"88","_yoast_wpseo_content_score":"30","_yoast_wpseo_is_cornerstone":"","_yoast_wpseo_keywordsynonyms":"[\"\",\"\",\"\",\"\",\"\",\"\"]","_yoast_wpseo_focuskw_text_input":"","_seo_original_html":"","footnotes":""},"categories":[1549,1550],"tags":[],"class_list":["post-161409","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-diagnostic-codes","category-icd-10-cm"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.2 (Yoast SEO v28.2) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>ICD-10 Code N08: Coding Guidelines and Requirements<\/title>\n<meta name=\"description\" content=\"ICD-10 Code N08 covers glomerular disorders from another disease, always billed after the etiology code, never alone.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/pabau.com\/fr\/diagnostic-codes\/icd-10-code-n08\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"ICD-10 Code N08: Coding Guidelines and Requirements\" \/>\n<meta property=\"og:description\" content=\"ICD-10 Code N08 covers glomerular disorders from another disease, always billed after the etiology code, never alone.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/pabau.com\/fr\/diagnostic-codes\/icd-10-code-n08\/\" \/>\n<meta property=\"og:site_name\" content=\"Pabau\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/Pabau\/\" \/>\n<meta property=\"article:published_time\" 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A claim submitted with N08 as the only diagnosis or as the principal diagnosis will be rejected by payers.","inLanguage":"fr-FR"},"inLanguage":"fr-FR"},{"@type":"Question","@id":"https:\/\/pabau.com\/fr\/diagnostic-codes\/icd-10-code-n08\/#faq-question-1784718659612","position":4,"url":"https:\/\/pabau.com\/fr\/diagnostic-codes\/icd-10-code-n08\/#faq-question-1784718659612","name":"How do you sequence N08 with an etiology code?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Sequence the etiology code first, then add N08 as an additional diagnosis. For example, renal amyloidosis, coded to the appropriate E85.- subcategory, is listed as the principal diagnosis, followed by N08 as an additional code documenting the glomerular manifestation. The physician note must explicitly state the causal relationship between the systemic disease and the glomerular disorder.","inLanguage":"fr-FR"},"inLanguage":"fr-FR"},{"@type":"Question","@id":"https:\/\/pabau.com\/fr\/diagnostic-codes\/icd-10-code-n08\/#faq-question-1784718659613","position":5,"url":"https:\/\/pabau.com\/fr\/diagnostic-codes\/icd-10-code-n08\/#faq-question-1784718659613","name":"What documentation is required to support a diagnosis of N08?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"The physician note must include three elements: the confirmed underlying systemic disease with sufficient specificity to assign the etiology code, clinical evidence of glomerular involvement (proteinuria, biopsy findings, or declining eGFR attributed to glomerular damage), and an explicit statement linking the systemic disease to the glomerular disorder. Without all three, the code cannot be supported on audit or payer review.","inLanguage":"fr-FR"},"inLanguage":"fr-FR"},{"@type":"Question","@id":"https:\/\/pabau.com\/fr\/diagnostic-codes\/icd-10-code-n08\/#faq-question-1784718659614","position":6,"url":"https:\/\/pabau.com\/fr\/diagnostic-codes\/icd-10-code-n08\/#faq-question-1784718659614","name":"Which DRG does ICD-10 Code N08 map to?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"ICD-10 Code N08 carries a complication\/comorbidity (CC) designation in the CMS MS-DRG Definitions Manual. As an additional code, it influences the DRG assignment based on the principal diagnosis. Its CC status means it can increase the DRG weight and reimbursement for inpatient encounters where it is accurately documented and coded. Verify the specific MS-DRG grouping against the current CMS definitions manual, as assignments are updated annually.","inLanguage":"fr-FR"},"inLanguage":"fr-FR"}]}},"yoast":{"focus_keyword":"ICD-10 Code N08","seo_title":"ICD-10 Code N08: Coding Guidelines and Requirements","meta_description":"ICD-10 Code N08 covers glomerular disorders from another disease, always billed after the etiology code, never alone.","content_score":"30","is_cornerstone":"","related_keyphrases":[{"keyword":"glomerular disorders in diseases classified elsewhere","score":72},{"keyword":"etiology manifestation coding","score":72},{"keyword":"diabetic nephropathy icd 10","score":61},{"keyword":"manifestation code icd 10","score":81},{"keyword":"glomerulonephritis icd 10","score":61}]},"_links":{"self":[{"href":"https:\/\/pabau.com\/fr\/wp-json\/wp\/v2\/posts\/161409","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pabau.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/pabau.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/pabau.com\/fr\/wp-json\/wp\/v2\/users\/77"}],"replies":[{"embeddable":true,"href":"https:\/\/pabau.com\/fr\/wp-json\/wp\/v2\/comments?post=161409"}],"version-history":[{"count":4,"href":"https:\/\/pabau.com\/fr\/wp-json\/wp\/v2\/posts\/161409\/revisions"}],"predecessor-version":[{"id":181567,"href":"https:\/\/pabau.com\/fr\/wp-json\/wp\/v2\/posts\/161409\/revisions\/181567"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pabau.com\/fr\/wp-json\/wp\/v2\/media\/161407"}],"wp:attachment":[{"href":"https:\/\/pabau.com\/fr\/wp-json\/wp\/v2\/media?parent=161409"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/pabau.com\/fr\/wp-json\/wp\/v2\/categories?post=161409"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/pabau.com\/fr\/wp-json\/wp\/v2\/tags?post=161409"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}