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X73.2XXA ICD-10-CM Code: Intentional self-harm by machine gun discharge, initial encounter

Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.

Coding at a Glance

7th character
Required — see the character table on this page
Tabular directives
1 Excludes1
Risk adjustment
CMS-HCC V28: 1 category · CMS-HCC V22 category 58 · RxHCC V08 category 132

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.

Coding instructions

Official Tabular Instructional Notes: the inclusion, exclusion and sequencing notes published for X73.2XXA in the official ICD-10-CM tabular list, quoted as published.

Source: CMS/CDC — ICD-10-CM Tabular ListRelease: FY2027Effective: October 1, 2026

Trace:FY2027 changesChange historyRelease, file and checksum

Notes without a marker are published on X73.2XXA itself; “inherited from” names the category or block whose note applies here.

Excludes1 — Not Coded Here

Conditions generally not reported together with this code (Excludes1) -- an error unless the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).

Source: inherited from X73

7th Character Guide

"The appropriate 7th character is to be added to each code from category X73"

  • A — initial encounter (this page’s code)
  • D — subsequent encounter
  • S — sequela

How the encounter character is assigned. “Initial encounter” means the patient is receiving active treatment for the condition — it is not limited to the first visit, and a different or new provider giving active treatment still assigns it. “Subsequent encounter” covers care during the healing or recovery phase after active treatment. “Sequela” is for complications or conditions that arise as a direct result of the original condition.

ICD-10-CM Official Guidelines for Coding and Reporting, Section I.C.19.a (paraphrased by MedCoder).

Variant codes in this family

X73.2XXA, X73.2XXD, X73.2XXS

Character meanings are CMS's official 7th-character extensions for this family, as carried in each variant code's official description; variant codes are registry rows. The explanation of how the encounter character is assigned is MedCoder editorial, distinct from the official content above it.

Coder workflow for X73.2XXA

MedCoder structured workflow — derived from this code’s own official record

Before you code X73.2XXA

  1. A 7th character is required in this family. Confirm the documented encounter: initial (active treatment), subsequent (healing or recovery phase), or sequela. This page’s code carries “A”. “Initial” means active treatment, not the first visit (Guidelines I.C.19.a).

    See the 7th Character Guide · Guide: 7th characters: initial, subsequent, sequela →

  2. An external cause code is reported in addition to the code for the injury or condition, never as the principal or first-listed diagnosis. Confirm the cause, intent, place of occurrence, activity and status where the record documents them, and assign the 7th character that matches the injury code. External cause coding guidelines (Guidelines I.C.20.a).

  3. Check the Excludes1 note: if the documentation supports a condition named there, do not simply proceed with X73.2XXA. Excludes1 conditions are not reported together with this code unless the record shows they are unrelated (Guidelines I.A.12.a).

    See the official tabular notes

Choose the right path

  1. Does the documentation support a condition named in X73.2XXA’s Excludes1 note?
    Yes → Do not simply proceed: review the excluded code. Both are reported only when the record shows the two conditions are unrelated.
    No → Continue.

    ReviewX74.01

  2. Is the encounter phase documented — active treatment, healing or recovery, or a sequela?
    Yes → Assign the matching 7th character; the variant codes are in the 7th Character Guide.
    No → The code is invalid without its 7th character — query for the missing element.

Consider X73.2XXA. Then confirm the code is valid for the date of service in the Verify section.

Documentation check

The provider’s diagnostic statement
Codes are assigned from the provider’s documented diagnosis, not from clinical criteria, test values or a medication list (Guidelines I.A.19).
Encounter type
Active treatment, healing or recovery phase, or sequela — the basis of the 7th character (Guidelines I.C.19.a).

Official instructions as workflow

  • Excludes1 — check before selecting X73.2XXA(1 note)

    Coding workflow: If the documentation supports a condition named in this note, do not simply proceed with X73.2XXA: the two are not reported together. The one exception is when the record shows the two conditions are unrelated to each other.

    CompareX74.01

    See the official tabular notes · Guidelines I.A.12.a

Coding decision scenarios

Pattern scenarios for this code’s structure — decision rules, not clinical cases

Documentation: Both the condition X73.2XXA describes and a condition named in its Excludes1 note are documented for the same encounter.

Coding question: Can both codes be reported?

Path: Review the Excludes1 note and the excluded code, and look for a provider statement on whether the two conditions are related.

Reason: Excludes1 means the two are not coded together; the exception is when the record shows the conditions are unrelated to each other (Guidelines I.A.12.a).

ReviewX74.01

Documentation: The patient returns during the healing or recovery phase after active treatment of the same condition.

Coding question: Which 7th character applies?

Path: Review the official 7th-character definitions for this family in the 7th Character Guide.

Reason: “Initial encounter” means active treatment, not the first visit; care during recovery takes “subsequent encounter”, and a complication arising from the original condition takes “sequela” (Guidelines I.C.19.a).

Every row is derived from this code’s own record — its title, tabular notes, 7th-character family and same-category siblings — with fixed MedCoder wording; nothing is inferred about a patient. The official notes and guideline text are in the sections each row links to, and they control.

Coding context

The comparisons, hierarchy, index entries, guidelines, relationships, risk-adjustment and coverage context a coder commonly needs. Each section names whether it is official source data, a MedCoder-derived relationship or MedCoder editorial.

Don’t confuse X73.2XXA with…

MedCoder analysis — pairs from this code’s official notes, distinctions written by MedCoder

The codes most likely to be picked instead of X73.2XXA — named in its own official notes, or sharing its laterality or encounter family — with what separates them and which documentation moves the case. Each links to the full comparison.

  • X74.01— Excludes1 conflict (Excludes1 — generally not reported together)

    Not coded here — the tabular list excludes this pair for the same encounter.

    Not reported together with this code, except where the two conditions are documented as unrelated.

    What moves you there: Documentation of airgun moves the case to X74.01; the two are not reported together unless documented as unrelated.

    Full comparison: X73.2XXA vs X74.01 →

  • X73.2XXD— Encounter relationship (Review)

    Same underlying diagnosis, different encounter phase.

    The same diagnosis at a different phase of care; one encounter takes one 7th character.

    What moves you there: Documentation of a subsequent encounter moves the case to X73.2XXD.

    Full comparison: X73.2XXA vs X73.2XXD →

  • X73.2XXS— Encounter relationship (Review)

    Same underlying diagnosis, different encounter phase.

    The same diagnosis at a different phase of care; one encounter takes one 7th character.

    What moves you there: Documentation of a sequela moves the case to X73.2XXS.

    Full comparison: X73.2XXA vs X73.2XXS →

Relationships are read from this code's own official notes, its laterality siblings and its encounter family; the wording of each distinction is MedCoder editorial, and the documentation named in each “what moves you there” line is the official note phrase or sibling title itself. Source: CMS ICD-10-CM tabular instructional notes; ICD-10-CM Official Guidelines, Section I.A.12.a.

Code Overview

Intentional self-harm by machine gun discharge, initial encounter is a billable ICD-10-CM diagnosis code (X73.2XXA).

MedCoder summary Summary composed by MedCoder from this code's official ICD-10-CM record. The tabular instructional notes themselves appear verbatim below.

Verify Before Coding

  • Principal-diagnosis restriction. External cause of morbidity codes (V, W, X and Y) describe the circumstance that caused an injury, not the condition treated. The Medicare Code Editor rejects them as a principal diagnosis; sequence the injury or condition first and report this code as secondary.

From the code registry, the Medicare Code Editor, and the MS-DRG Definitions Manual. Check it against a full claim in Claim Check.

Relationships & Classification

MedCoder structured relationships — computed from published CMS and AHRQ datasets

Other codes that name X73.2XXA or its code family, from the CMS ICD-10-CM tabular instructional notes. Tabular-note edges are stored at the code family level that carries each note.

Referenced by 26 Excludes1 notes: W20 — Struck by thrown, projected or falling object (via X73.-), W20-W49 — Exposure to inanimate mechanical forces (W20-W49) (via X73.-), W21 — Striking against or struck by sports equipment (via X73.-), W22 — Striking against or struck by other objects (via X73.-), W23 — Caught, crushed, jammed or pinched in or between objects (via X73.-), W24 — Contact with lifting and transmission devices, not elsewhere classified (via X73.-), W25 — Contact with sharp glass (via X73.-), W26 — Contact with other sharp objects (via X73.-), W27 — Contact with nonpowered hand tool (via X73.-), W28 — Contact with powered lawn mower (via X73.-), W29 — Contact with other powered hand tools and household machinery (via X73.-), W30 — Contact with agricultural machinery (via X73.-), W31 — Contact with other and unspecified machinery (via X73.-), W32 — Accidental handgun discharge and malfunction (via X73.-), W34 — Accidental discharge and malfunction from other and unspecified firearms and guns (via X73.-), W35 — Explosion and rupture of boiler (via X73.-), W36 — Explosion and rupture of gas cylinder (via X73.-), W37 — Explosion and rupture of pressurized tire, pipe or hose (via X73.-), W38 — Explosion and rupture of other specified pressurized devices (via X73.-), W39 — Discharge of firework (via X73.-), +6 more.

These codes’ tabular lists mark this diagnosis as mutually exclusive — not reported together unless the conditions are documented as unrelated.

Clinical classification (AHRQ CCSR):EXT005 — External cause codes: firearm; initial encounter; EXT021 — External cause codes: intent of injury, self-harm; MBD012 — Suicidal ideation/attempt/intentional self-harm.

Clinical Classifications Software Refined (CCSR) for ICD-10-CM Diagnoses. Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality.

Related Codes

Same CMS-HCC risk category (V28)

CMS maps these diagnoses to the same Hierarchical Condition Category (Major Depression, Moderate or Severe, without Psychosis) for risk-adjusted payment.

T71.232A — Asphyxiation due to being trapped in a (discarded) refrigerator, intentional self-harm, initial encounter, X71.0XXA — Intentional self-harm by drowning and submersion while in bathtub, initial encounter, X71.1XXA — Intentional self-harm by drowning and submersion while in swimming pool, initial encounter, X71.2XXA — Intentional self-harm by drowning and submersion after jump into swimming pool, initial encounter, X71.3XXA — Intentional self-harm by drowning and submersion in natural water, initial encounter, X71.8XXA — Other intentional self-harm by drowning and submersion, initial encounter, X71.9XXA — Intentional self-harm by drowning and submersion, unspecified, initial encounter, X72.XXXA — Intentional self-harm by handgun discharge, initial encounter, X73.0XXA — Intentional self-harm by shotgun discharge, initial encounter, X73.1XXA — Intentional self-harm by hunting rifle discharge, initial encounter, X73.8XXA — Intentional self-harm by other larger firearm discharge, initial encounter, X73.9XXA — Intentional self-harm by unspecified larger firearm discharge, initial encounter, X74.01XA — Intentional self-harm by airgun, initial encounter, X74.02XA — Intentional self-harm by paintball gun, initial encounter, X74.09XA — Intentional self-harm by other gas, air or spring-operated gun, initial encounter, X74.8XXA — Intentional self-harm by other firearm discharge, initial encounter, X74.9XXA — Intentional self-harm by unspecified firearm discharge, initial encounter, X75.XXXA — Intentional self-harm by explosive material, initial encounter, X76.XXXA — Intentional self-harm by smoke, fire and flames, initial encounter, X77.0XXA — Intentional self-harm by steam or hot vapors, initial encounter, +350 more

Related risk categories

These categories interact through CMS's HCC hierarchy — one can suppress the other's risk-adjustment weight when both are present on a claim.

Schizophrenia, Psychosis, Except Schizophrenia, Personality Disorders; Anorexia/Bulimia Nervosa, Bipolar Disorders without Psychosis

Same clinical category (CCSR)

AHRQ's Clinical Classifications Software groups these diagnoses under the same clinical categories (External cause codes: firearm; initial encounter, External cause codes: intent of injury, self-harm, Suicidal ideation/attempt/intentional self-harm).

W33.12XA — Accidental malfunction of hunting rifle, initial encounter, W33.13XA — Accidental malfunction of machine gun, initial encounter, W33.19XA — Accidental malfunction of other larger firearm, initial encounter, W34.00XA — Accidental discharge from unspecified firearms or gun, initial encounter, W34.09XA — Accidental discharge from other specified firearms, initial encounter, W34.10XA — Accidental malfunction from unspecified firearms or gun, initial encounter, W34.19XA — Accidental malfunction from other specified firearms, initial encounter, X72.XXXA — Intentional self-harm by handgun discharge, initial encounter, X73.0XXA — Intentional self-harm by shotgun discharge, initial encounter, X73.1XXA — Intentional self-harm by hunting rifle discharge, initial encounter, X73.8XXA — Intentional self-harm by other larger firearm discharge, initial encounter, X73.9XXA — Intentional self-harm by unspecified larger firearm discharge, initial encounter, X74.8XXA — Intentional self-harm by other firearm discharge, initial encounter, X74.9XXA — Intentional self-harm by unspecified firearm discharge, initial encounter, X93.XXXA — Assault by handgun discharge, initial encounter, X94.0XXA — Assault by shotgun, initial encounter, X94.1XXA — Assault by hunting rifle, initial encounter, X94.2XXA — Assault by machine gun, initial encounter, X94.8XXA — Assault by other larger firearm discharge, initial encounter, X94.9XXA — Assault by unspecified larger firearm discharge, initial encounter, +414 more

Contextual Map

Every relationship of X73.2XXA in one view: hierarchy, official tabular instructions in both directions, clinical classification, risk adjustment, MS-DRG participation, index terms and change history — each edge carrying the CMS source it derives from.

Run X73.2XXA with these 8 related codes in Claim Check

Hierarchy

Referenced by Excludes1 notes (26)

Clinical classification (CCSR)

Risk adjustment (CMS-HCC)

  • HCC 155 — Major Depression, Moderate or Severe, without Psychosis [CMS-HCC]— CMS-HCC V28 · 2026

Nearest codes (20)

Change history

  • FY2016 — In the code set at ICD-10-CM adoption [Change history]— CMS release files (code change ledger) · icd10cm-fy2016

Deep reference

Published questions and FAQ, every source behind this page with its release and checksum, the date-of-service check and the complete change history.

Common coding questions

MedCoder editorial

Does X73.2XXA require a 7th character?

Yes. The appropriate 7th character is to be added to each code from category X73.

Sources for this page

Codes, titles, notes, index terms and mappings on this page are transcribed from the datasets below. Relationships MedCoder computed and text MedCoder wrote are labelled where they appear.

Code, title, tabular notes and index terms Official source data
CMS/CDC ICD-10-CM FY2027 tabular list, index and tables, effective October 1, 2026 Release, file and checksum · Publisher’s page
Claim edits Official source data
CMS Definitions of Medicare Code Edits — v44.0 (October 2026) Release, file and checksum · Publisher’s page
Risk adjustment Official source data
2026 Mid-Year Final ICD-10 Mappings + Model Software (cms.gov/files/zip/2026-midyear-final-icd-10-mappings.zip, 2026-midyear-final-model-software.zip) — CMS-HCC V28, PY2026 mid-year final release Release, file and checksum · Publisher’s page
Change history and date-of-service validity Official source data
CMS ICD-10-CM release addenda, ingested release by release into the change ledger Release, file and checksum · Publisher’s page
Comparisons, relationships and the contextual map MedCoder structured relationship
Computed by MedCoder from the tabular notes and tables above; every derived relationship is marked as derived where it appears
Summary and FAQ answers MedCoder explanation
Written by MedCoder to explain the sources above: drafted with AI assistance, checked by a person against the release files, and labelled as MedCoder text where it appears. Not official text.

Current data releases:ICD-10-CM FY2027 · ICD-10-PCS FY2027 · HCPCS October 2026 · MS-DRG v44 · Medicare Code Editor v44.0 · NCCI PTP Q4 2026 · MUE Q4 2026 · NCD code lists 2026-01 · LCD export September 20, 2026 · All releases and sources

Labels on this page: Official source data · MedCoder structured relationship · MedCoder explanation. How to read the labels · All data sources and release dates · CMS coding rules

Cite this page

Reference this page in a research guide, syllabus or article. The release is included because code content changes each year.

MedCoder.ai. "X73.2XXA — Intentional self-harm by machine gun discharge, initial encounter." ICD-10-CM FY2027. https://medcoder.ai/icd10/code/x73.2xxa-intentional-self-harm-by-machine-gun-discharge-initial-encounter

Change history

  • FY2016 — October 1, 2015
    In the code set at ICD-10-CM adoption
    Intentional self-harm by machine gun discharge, initial encounter

No changes since FY2016 — additions, deletions, description changes and billable-status changes are tracked through FY2027, and none are recorded for this code. Note changes are tracked from FY2027 only.

Nearest Codes in This Family

Official ICD-10-CM classifications closest to X73.2XXA in its code family, with their registry titles.

View all codes in the X73 family