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 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 Chapter 5 (Mental, Behavioral and Neurodevelopmental Disorders), […]
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 a documented disorder does not meet G60-G63 criteria. It maps to MS-DRG 073/074 and crosswalks to ICD-9 357.89.
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 Most billing denials for congenital bone disorder diagnoses trace back to a single problem: coders assign a non-specific parent code when a billable child code exists. Congenital condition diagnosis codes follow the same hierarchy logic, and ICD-10 Code Q78.1 is no exception. This reference covers billability, synonyms, code […]
ICD-10 Code L54: Erythema in diseases classified elsewhere
ICD-10 Code L54: Definition and clinical description ICD-10 Code L54 is the diagnosis code for erythema in diseases classified elsewhere – a skin-surface redness that arises as a secondary feature of a primary systemic or internal condition rather than as an independent dermatological disorder. Clinicians and coders working in dermatology practice management software encounter this […]
ICD-10 code B75: Trichinellosis diagnosis and billing guide
ICD-10 code B75: Definition and clinical description of Trichinellosis ICD-10 code B75 is the designated billable code for Trichinellosis, a parasitic infection caused by Trichinella species nematodes. According to the WHO’s ICD-10 browser, B75 sits within Chapter I (Certain Infectious and Parasitic Diseases) under the Helminthiases block (B65-B83), which covers roundworm, flatworm, and related parasitic […]