Y36.421S
✓ BillableWar operations involving firearms pellets, civilian, sequela
External causes of morbidity (V00-Y99)
❌ Excludes1
inheritedRules inherited from parent codes in the hierarchy.
- • 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 Y36.421S represents war operations involving firearms pellets, 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 Y36.421S has 2 Excludes1 restriction(s) — codes that cannot be reported together on the same claim.
Frequently Asked Questions
What is ICD-10 code Y36.421S?
ICD-10-CM code Y36.421S is "War operations involving firearms pellets, civilian, sequela". It belongs to the category: External causes of morbidity (V00-Y99).
Is Y36.421S a billable ICD-10 code?
Yes, Y36.421S is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
What codes are excluded with Y36.421S?
Y36.421S has 2 Excludes1 rule(s). These codes are mutually exclusive and cannot be coded together on the same claim.
Related Codes in Y36.421
Other codes in the same category that may be relevant for differential coding:
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Data Source
CMS ICD-10-CM 2026 Tabular List
Updated October 1, 2025 (FY2026)