ICD-10 code G10: Huntington’s disease diagnosis and coding guide
ICD-10 Code G10: Definition and classification ICD-10 Code G10 is the single billable ICD-10-CM diagnosis code for Huntington’s disease. It covers all confirmed presentations of the condition, regardless of clinical stage or symptom profile. This guide covers the classification hierarchy, synonyms, related codes, documentation requirements, and common coding pitfalls for accurate diagnosis reporting in 2026. […]
ICD-10 code G07: Intracranial and intraspinal abscess and granuloma
ICD-10 Code G07 covers intracranial and intraspinal abscess and granuloma when those conditions arise as a direct consequence of another disease classified elsewhere in ICD-10-CM. Because it is a manifestation code, the underlying etiology must be coded first; without it, the claim is incomplete by definition and most payers will reject it. This reference covers […]
ICD-10 code F24: Shared psychotic disorder
ICD-10 Code F24 is the billable diagnosis code for shared psychotic disorder, the condition in which one person adopts the delusions of a close family member or partner who already has an established psychotic disorder. It sits in the F20-F29 block and is also known as induced delusional disorder, or folie à deux. This reference […]
ICD-10 code F79: Unspecified intellectual disabilities
ICD-10 Code F79: Definition and clinical description ICD-10 Code F79, sometimes referenced as the F79 diagnosis code, is a billable diagnosis code for unspecified intellectual disabilities. It applies when an intellectual disability is clinically documented but its severity cannot be determined from the available assessment data. ICD-10 Code F79 classifies unspecified intellectual disabilities within ICD-10-CM […]
ICD-10 code G64: Other disorders of peripheral nervous system
G64 is the billable ICD-10-CM code for other disorders of the peripheral nervous system, used only when documentation rules out G60-G63.
ICD-10 code K36: Other appendicitis
ICD-10 code K36 is a valid, billable ICD-10-CM diagnosis code for other appendicitis — specifically chronic appendicitis and recurrent appendicitis. It sits in the K35-K38 block (Diseases of appendix) and applies when documentation describes a non-acute, ongoing, or episodic presentation rather than acute appendicitis (K35.x) or unspecified appendicitis (K37). This reference covers the official ICD-10-CM […]
ICD-10 code L14: Bullous disorders in diseases classified elsewhere
ICD-10 code L14: Definition and clinical description ICD-10 code L14 classifies bullous (blistering) skin disorders that occur as a manifestation of a systemic disease found elsewhere in the classification. It is a billable manifestation code that carries a mandatory “code first” instruction, meaning the underlying disease must be sequenced ahead of L14 on the claim. […]
ICD-10 code L62: Nail disorders in diseases classified elsewhere
ICD-10 code L62 (Nail disorders in diseases classified elsewhere) is a billable, specific ICD-10-CM manifestation code for nail changes caused by a disease coded in another chapter. It carries a mandatory “code first” instruction. The underlying disease — such as pachydermoperiostosis (M89.4-) — must be sequenced first, with L62 reported second. This reference covers ICD-10 […]
ICD-10 code J13: Pneumonia due to Streptococcus pneumoniae
ICD-10 code J13 is the billable diagnosis for pneumococcal pneumonia. Code any associated influenza first, and never use J13 for congenital pneumonia (P23.6).
ICD-10 code Q78.1: Polyostotic fibrous dysplasia
ICD-10 code Q78.1: Definition and clinical description ICD-10 code Q78.1 is a billable, specific ICD-10-CM code for polyostotic fibrous dysplasia (PFD), a congenital skeletal disorder in which normal bone tissue is replaced by fibrous tissue at multiple sites. According to the CDC/NCHS ICD-10-CM web tool, this fibrous dysplasia ICD-10 code is valid for dates of […]