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U.S. ICD-10-CM · FY 2027

Y37.A2 ICD-10-CM Code: High level blast overpressure in military operations

A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.

Code definition

Official description

Y37.A2

High level blast overpressure in military operations

ICD-10-CM diagnosis code · United States clinical modification

Classification

Where Y37.A2 sits

  1. 1

    Chapter 20

    External causes of morbidity (V00-Y99)

  2. 2

    Section

    Legal intervention, operations of war, military operations, and terrorism (Y35-Y38)

  3. 3

    Category Y37

    Military operations

  4. 4

    Subcategory Y37.A

    Blast overpressure in military operations

  5. 5

    Code Y37.A2

    High level blast overpressure in military operations

More specific choices

Codes under Y37.A2

Y37.A2 is a non-billable category. Choose the child code that best matches the documented diagnosis.

Documentation details

Notes for this code

Inclusion terms

  • High level blast overpressure due to explosion in military operations
  • HLB overpressure in military operations

Code first

No “code first” instruction is listed for Y37.A2.

Use additional code

No “use additional code” instruction is listed for Y37.A2.

Excludes1

Conditions that should not be reported together with this code.

No Excludes1 note is listed for Y37.A2.

Excludes2

Conditions not included here that may be reported separately when present.

No Excludes2 note is listed for Y37.A2.

Transparency

Source and release

Data release

U.S. ICD-10-CM · FY 2027

Effective date

Oct 1, 2026

This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.

Review the CDC/NCHS ICD-10-CM source

Code-specific guidance

Frequently asked questions

What does ICD-10-CM code Y37.A2 mean?

Y37.A2 is the FY 2027 U.S. ICD-10-CM code for “High level blast overpressure in military operations.”

Is Y37.A2 a billable or specific ICD-10-CM code?

No. Y37.A2 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.

Where is Y37.A2 located in ICD-10-CM?

Y37.A2 is listed in Chapter 20, External causes of morbidity (V00-Y99), within Legal intervention, operations of war, military operations, and terrorism (Y35-Y38) (Y35–Y38), under category Y37, Military operations and subcategory Y37.A, Blast overpressure in military operations.

What coding notes are listed for Y37.A2?

Its listed inclusion terms are High level blast overpressure due to explosion in military operations; HLB overpressure in military operations. No code-first instruction is listed. No Excludes1 note is listed. No Excludes2 note is listed.

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