Y36.121S

✓ Billable

War operations involving destruction of aircraft due to collision with other aircraft, civilian, sequela

External causes of morbidity (V00-Y99)

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❌ Excludes1

inherited

Rules inherited from parent codes in the hierarchy.

Y36

• injury to military personnel occurring during peacetime military operations (Y37.-)
• military vehicles involved in transport accidents with non-military vehicle during peacetime (V09.01, V09.21, V19.81, V29.818, V39.81, V49.81, V59.81, V69.81, V79.81)

Clinical Description

ICD-10-CM code Y36.121S represents war operations involving destruction of aircraft due to collision with other aircraft, civilian, sequela. This code falls under the External causes of morbidity (V00-Y99) classification. It is a billable/specific code valid for HIPAA-covered transactions as of October 1, 2025 (FY2026). This code can be used to indicate a diagnosis for reimbursement purposes on insurance claims.

This is a 8-character code at the 7th level of specificity. This is the most specific code available in this subcategory. Coders should note that Y36.121S has 2 Excludes1 restriction(s) — codes that cannot be reported together on the same claim.

Frequently Asked Questions

What is ICD-10 code Y36.121S?

ICD-10-CM code Y36.121S is "War operations involving destruction of aircraft due to collision with other aircraft, civilian, sequela". It belongs to the category: External causes of morbidity (V00-Y99).

Is Y36.121S a billable ICD-10 code?

Yes, Y36.121S is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.

What codes are excluded with Y36.121S?

Y36.121S has 2 Excludes1 rule(s). These codes are mutually exclusive and cannot be coded together on the same claim.

Related Codes in Y36.121

Other codes in the same category that may be relevant for differential coding:

Y36.121AWar operations involving destruction of aircraft due to collision with other aircraft, civilian, initial encounter Y36.121DWar operations involving destruction of aircraft due to collision with other aircraft, civilian, subsequent encounter

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Code Information

CodeY36.121S

BillableYes

ParentY36.121

CategoryExternal causes of morbidity (V00-Y99)

Excludes12 rule(s)

Excludes20 note(s)

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)