ICD-10-CM 2027
ICD-10 code for head wound
From the official ICD-10-CM alphabetic index entry “Wound, open › head”. Page updated September 29, 2026.
About coding head wound
The ICD-10-CM code for head wound is S01.90 (Unspecified open wound of unspecified part of head). The official index lists 2 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on S01.90.
Within S01.9, choose S01.90 (Unspecified open wound of unspecified part of head) only when documentation doesn't support a more specific option: laceration without foreign body of unspecified part of head (S01.91), laceration with foreign body of unspecified part of head (S01.92), puncture wound without foreign body of unspecified part of head (S01.93), puncture wound with foreign body of unspecified part of head (S01.94) and open bite of unspecified part of head (S01.95).
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 head wound codes (official index)
Common questions about head wound ICD-10 codes
What is the ICD-10 code for head wound?
- S01.90 — Unspecified open wound of unspecified part of head (a header code; report a more specific subcode). More specific codes apply when the documentation supports them: S01.20, S01.80.
What is the ICD-10 code for nose head wound?
- S01.20 — Unspecified open wound of nose (header code; choose a more specific subcode).
Is S01.90 billable?
- No. S01.90 is a header code. Report one of its more specific subcodes instead.