ICD-10-CM 2027
ICD-10 code for thumb wound
Unspecified open wound of unspecified thumb without damage to nail
From the official ICD-10-CM alphabetic index entry “Wound, open › thumb”. Page updated September 29, 2026.
About coding thumb wound
The ICD-10-CM code for thumb wound is S61.009 (Unspecified open wound of unspecified thumb without damage to nail). The official index lists 5 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on S61.009.
Within S61.00, choose S61.009 (unspecified thumb without damage to nail) only when documentation doesn't support a more specific option: right thumb without damage to nail (S61.001) and left thumb without damage to nail (S61.002).
Codes in this range require a 7th character: A for initial encounter, D for subsequent encounter and S for sequela. Use placeholder "X" characters to fill any empty positions before the 7th character.
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
More specific thumb wound codes (official index)
- with
- amputation
- damage to nail S61.109 — Unspecified open wound of unspecified thumb with damage to nail
- bite
- laceration
- left S61.002 — Unspecified open wound of left thumb without damage to nail
- with
- damage to nail S61.102 — Unspecified open wound of left thumb with damage to nail
- puncture
- right S61.001 — Unspecified open wound of right thumb without damage to nail
- with
- damage to nail S61.101 — Unspecified open wound of right thumb with damage to nail
Common questions about thumb wound ICD-10 codes
What is the ICD-10 code for thumb wound?
- S61.009 — Unspecified open wound of unspecified thumb without damage to nail (a header code; report a more specific subcode). More specific codes apply when the documentation supports them: S61.109, S61.002, S61.102, S61.001 and others below.
What is the ICD-10 code for left thumb wound?
- S61.002 — Unspecified open wound of left thumb without damage to nail (header code; choose a more specific subcode).
What is the ICD-10 code for right thumb wound?
- S61.001 — Unspecified open wound of right thumb without damage to nail (header code; choose a more specific subcode).
Is S61.009 billable?
- No. S61.009 is a header code. Report one of its more specific subcodes instead.