ICD-10 code M31.9: Necrotizing vasculopathy, unspecified

ICD-10 Code M31.9: Definition and clinical description ICD-10 Code M31.9 identifies necrotizing vasculopathy, unspecified: the residual code in the M31 category, used when a physician documents “necrotizing vasculopathy” without naming a more specific subtype. It is a billable, specific code valid for FY2026 reimbursement, and it slots into claims management software workflows the same way […]
ICD-10 code G14: Postpolio syndrome diagnosis and billing guide

ICD-10 code G14 covers postpolio syndrome. Learn clinical criteria, the Type 1 Excludes relationship with B91, ICD-9 crosswalk, and documentation requirements.
ICD-10 code F44.9: Dissociative and conversion disorder, unspecified

F44.9 is a billable ICD-10-CM code for 2026 covering dissociative and conversion disorder, unspecified. Includes synonyms, F44 hierarchy, ICD-9 crosswalk, and billing guidance.
ICD-10 code E54: Ascorbic acid deficiency (Vitamin C deficiency)

ICD-10 code E54 covers ascorbic acid deficiency and scurvy. Billable status, Type 1 Excludes, ICD-9 crosswalk, and documentation requirements.
ICD-10 code V47.6XXS: Car passenger collision, sequela

ICD-10 Code V47.6XXS: definition and clinical description ICD-10 code V47.6XXS is the billable ICD-10-CM external cause code for a car passenger injured in a collision with a fixed or stationary object during a traffic accident, sequela encounter. It applies when a passenger injured in an MVA with a stationary object returns weeks or months later […]
ICD-10 code E52: Niacin deficiency (pellagra) coding reference

ICD-10 code E52 is the billable ICD-10-CM diagnosis code for niacin (Vitamin B3) deficiency, also known as pellagra. It covers deficiency of niacin or its precursor tryptophan, producing the classic “three Ds”: dermatitis, diarrhea, and dementia. E52 is valid for HIPAA-covered claims and current through FY2026. E52 is a fully billable ICD-10-CM diagnosis code for […]
Assault ICD-10 codes: Y09 and the X92-Y09 range

There is no single assault ICD-10 code. Assault ICD-10 codes run across the X92-Y09 range, one for each documented mechanism of intentional harm by another person. When the record confirms an assault but names no weapon or method, the code is Y09 (assault by unspecified means). This guide gives you the full range in one […]
Femur fracture ICD-10 codes: the S72 family and S72.91XH

Femur fracture ICD-10 codes all live under category S72 (fracture of femur). Which exact code you assign comes down to three things: where the femur broke, which side, and whether this is the first visit, a follow-up, or a late effect. This guide maps the full S72 family so you can find the right code […]
ICD-10 code E30.8: Other disorders of puberty

ICD-10 Code E30.8, Other disorders of puberty, is a billable diagnosis code for a specified pubertal disorder in a patient aged 0 to 17 that does not fit delayed puberty (E30.0) or precocious puberty (E30.1). Its most common use is premature thelarche, the isolated early development of breast tissue without other signs of puberty. The […]
ICD-10 code D84.9: Immunodeficiency, unspecified

ICD-10 Code D84.9 is a billable ICD-10-CM diagnosis code for immunodeficiency, unspecified, valid for the 2026 code year. It applies when clinical documentation confirms a patient is immunocompromised, immunosuppressed, or immunodeficient, but does not support a more specific immunodeficiency code. That “unspecified” label is where the D84.9 diagnosis code trips clinics up. When the record […]