X73.9XXA ICD-10-CM Code: Intentional self-harm by unspecified larger firearm discharge, initial encounter
Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.
Risk Adjustment (CMS-HCC)
Payment categories this diagnosis maps to under CMS-HCC V28, payment year 2026.
- HCC 155 — Major Depression, Moderate or Severe, without Psychosis
Other models: CMS-HCC V22 HCC 58 · RxHCC V08 HCC 132
Risk scores depend on the enrollee's full accepted diagnosis set and segment; a category mapping alone does not determine payment.
Code Set: Valid FY2026 and FY2027. FY2026 took effect October 1, 2025.
Official Registry Overview & Definition
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for X73.9XXA in the official ICD-10-CM tabular list.
Excludes1 — Not Coded Here
Conditions that can never be reported with this code; the two are mutually exclusive.
- airgun (X74.01)
Frequently Asked Questions (FAQ) & Clinical Guidance
Does X73.9XXA require a 7th character?
Yes. The appropriate 7th character is to be added to each code from category X73.
Nearest Codes in This Family
Official ICD-10-CM classifications closest to X73.9XXA in its code family, with their registry titles.
- X73.2XXA — Intentional self-harm by machine gun discharge, initial encounter
- X73.2XXD — Intentional self-harm by machine gun discharge, subsequent encounter
- X73.2XXS — Intentional self-harm by machine gun discharge, sequela
- X73.8 — Intentional self-harm by other larger firearm discharge
- X73.8XXA — Intentional self-harm by other larger firearm discharge, initial encounter
- X73.8XXD — Intentional self-harm by other larger firearm discharge, subsequent encounter
- X73.8XXS — Intentional self-harm by other larger firearm discharge, sequela
- X73.9 — Intentional self-harm by unspecified larger firearm discharge
- X73.9XXD — Intentional self-harm by unspecified larger firearm discharge, subsequent encounter
- X73.9XXS — Intentional self-harm by unspecified larger firearm discharge, sequela