ICD-10 code C64.1: Malignant neoplasm of right kidney, except renal pelvis
ICD-10 code C64.1 is the billable ICD-10-CM diagnosis code for a malignant neoplasm of the right kidney, except renal pelvis. Under ICD-10-CM, laterality is mandatory, so submitting an unspecified code when imaging documents the affected side is a coding error that payers will flag. According to CMS ICD-10-CM guidelines, coders must assign the most specific […]
ICD-10 code B92: Sequelae of leprosy coding guide
ICD-10 code B92: Definition and clinical description Most leprosy-related claims that get flagged or denied share a common root: coders assign an active disease code when the patient’s condition is actually a residual consequence of a resolved infection. ICD-10 code B92 exists precisely for those situations. It captures the sequelae of leprosy – the lasting […]
ICD-10 code M30.1: Polyarteritis with lung involvement (EGPA)
ICD-10 code M30.1: Definition and clinical overview ICD-10 code M30.1 is the billable diagnosis code for polyarteritis with lung involvement, valid for FY2026 HIPAA-covered transactions. It covers the condition once called Churg-Strauss syndrome and now formally classified by most rheumatology bodies as eosinophilic granulomatosis with polyangiitis (EGPA). Both names are clinically valid, and both map […]
ICD-10 code B79: Trichuriasis diagnosis, billable status, and coding guidance
ICD-10 Code B79 is the billable ICD-10-CM diagnosis code for trichuriasis, an intestinal infection caused by the whipworm Trichuris trichiura. This reference covers billable status, MS-DRG groupings, adjacent helminthiasis codes, the screening code B79 is often mistaken for, and the documentation payers expect on a B79 claim. Trichuriasis ranks among the most prevalent soil-transmitted helminthiases […]
ICD-10 code M04.2: Cryopyrin-associated periodic syndromes
ICD-10 code M04.2 is the billable ICD-10-CM diagnosis for cryopyrin-associated periodic syndromes (CAPS), a group of rare NLRP3-gene autoinflammatory disorders. It covers three subtypes: familial cold autoinflammatory syndrome (FCAS), Muckle-Wells syndrome (MWS), and NOMID/CINCA. The code is valid for FY 2026 claims (effective October 1, 2025). Rare autoinflammatory disorders are among the most challenging diagnostic […]
ICD-10 code M11.9: Understanding crystal arthropathy
ICD-10 code M11.9 is the billable code for crystal arthropathy, unspecified. It sits under ICD-10-CM category M11 (Other crystal arthropathies), within Chapter 13: Diseases of the musculoskeletal system and connective tissue (M00-M99), and the CMS ICD-10-CM official code set lists it as valid for the 2026 fiscal year. Rheumatology practices, orthopedic practices, and internal medicine […]
ICD-10 code Q52.3: Imperforate hymen
ICD-10 code Q52.3 is the billable ICD-10-CM diagnosis for imperforate hymen, a congenital condition where the hymenal membrane fully obstructs the vaginal opening. It applies to female patients only, sits in Chapter 17 (Q00-Q99), and remains valid and unchanged in the 2026 code set. Most coding denials for congenital female genital malformations trace back to […]
ICD-10 code H91.3: Deaf nonspeaking, not elsewhere classified
ICD-10 code H91.3 describes a patient who is deaf and nonspeaking, where the condition cannot be attributed to a more specific cause captured elsewhere in the classification. The “not elsewhere classified” qualifier means the coder has reviewed the full H90-H94 range and confirmed no more specific code applies. H91.3 does not distinguish between congenital and […]
ICD-10 code H90.3: Sensorineural hearing loss, bilateral
H90.3 classifies sensorineural hearing loss affecting both ears. Sensorineural hearing loss arises from damage to the cochlea (inner ear), the auditory nerve (cranial nerve VIII), or the central auditory processing pathway, rather than from obstruction or structural issues in the outer or middle ear, such as those seen in otitis media. That distinction is clinically […]
ICD-10 code R32: Unspecified urinary incontinence
ICD-10 Code R32 is the billable diagnosis code for unspecified urinary incontinence, valid for FY 2026 claims. It sits in Chapter 18 of the ICD-10-CM system (R00-R99: symptoms, signs and abnormal clinical and laboratory findings), inside the genitourinary symptom group R30-R39. Clinicians assign R32 when a patient presents with involuntary urine loss but the chart […]