Y37.021

⚠ Non-billable (Header)

Military operations involving explosion of marine mine, civilian

External causes of morbidity (V00-Y99)

⚠️ This is a category header code — not billable. Use a more specific child code below.

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❌ Excludes1

inherited

Rules inherited from parent codes in the hierarchy.

Y37

• military aircraft involved in aircraft accident with civilian aircraft (V97.81-)
• military vehicles involved in transport accident with civilian vehicle (V09.01, V09.21, V19.81, V29.818, V39.81, V49.81, V59.81, V69.81, V79.81)
• military watercraft involved in water transport accident with civilian watercraft (V94.81-)
• war operations (Y36.-)

Child Codes (3)

Y37.021AMilitary operations involving explosion of marine mine, civilian, initial encounter✓ Billable Y37.021DMilitary operations involving explosion of marine mine, civilian, subsequent encounter✓ Billable Y37.021SMilitary operations involving explosion of marine mine, civilian, sequela✓ Billable

Clinical Description

ICD-10-CM code Y37.021 represents military operations involving explosion of marine mine, civilian. This code falls under the External causes of morbidity (V00-Y99) classification. It is a non-billable category header code. A more specific child code from the list below must be used for billing and reimbursement purposes.

This is a 7-character code at the 6th level of specificity. There are 3 more specific child codes under Y37.021. Coders should note that Y37.021 has 4 Excludes1 restriction(s) — codes that cannot be reported together on the same claim.

Frequently Asked Questions

What is ICD-10 code Y37.021?

ICD-10-CM code Y37.021 is "Military operations involving explosion of marine mine, civilian". It belongs to the category: External causes of morbidity (V00-Y99).

Is Y37.021 a billable ICD-10 code?

No, Y37.021 is a non-billable header code. A more specific child code must be used for billing.

What codes are excluded with Y37.021?

Y37.021 has 4 Excludes1 rule(s). These codes are mutually exclusive and cannot be coded together on the same claim.

Related Codes in Y37.02

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

Y37.020Military operations involving explosion of marine mine, military personnel

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Code Information

CodeY37.021

BillableNo — Header code

ParentY37.02

CategoryExternal causes of morbidity (V00-Y99)

Excludes14 rule(s)

Excludes20 note(s)

Child codes3

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)