S91.20 — Unspecified open wound of toe with damage to nail
Is S91.20 billable?
No — S91.20 is a non-billable header code. S91.20 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 21 billable codes beneath S91.20.
Billable codes under this header
- S91.201AUnspecified open wound of right great toe with damage to nail, initial encounter
- S91.201DUnspecified open wound of right great toe with damage to nail, subsequent encounter
- S91.201SUnspecified open wound of right great toe with damage to nail, sequela
- S91.202AUnspecified open wound of left great toe with damage to nail, initial encounter
- S91.202DUnspecified open wound of left great toe with damage to nail, subsequent encounter
- S91.202SUnspecified open wound of left great toe with damage to nail, sequela
- S91.203AUnspecified open wound of unspecified great toe with damage to nail, initial encounter
- S91.203DUnspecified open wound of unspecified great toe with damage to nail, subsequent encounter
- S91.203SUnspecified open wound of unspecified great toe with damage to nail, sequela
- S91.204AUnspecified open wound of right lesser toe(s) with damage to nail, initial encounter
- S91.204DUnspecified open wound of right lesser toe(s) with damage to nail, subsequent encounter
- S91.204SUnspecified open wound of right lesser toe(s) with damage to nail, sequela
- S91.205AUnspecified open wound of left lesser toe(s) with damage to nail, initial encounter
- S91.205DUnspecified open wound of left lesser toe(s) with damage to nail, subsequent encounter
- S91.205SUnspecified open wound of left lesser toe(s) with damage to nail, sequela
- S91.206AUnspecified open wound of unspecified lesser toe(s) with damage to nail, initial encounter
- S91.206DUnspecified open wound of unspecified lesser toe(s) with damage to nail, subsequent encounter
- S91.206SUnspecified open wound of unspecified lesser toe(s) with damage to nail, sequela
- S91.209AUnspecified open wound of unspecified toe(s) with damage to nail, initial encounter
- S91.209DUnspecified open wound of unspecified toe(s) with damage to nail, subsequent encounter
- S91.209SUnspecified open wound of unspecified toe(s) with damage to nail, sequela
S91.20 at a glance
| Code | S91.20 |
|---|---|
| Description | Unspecified open wound of toe with damage to nail |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Excludes1 — never code together — inherited from S91
The conditions below can never be reported together with S91.20 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- open fracture of ankle, foot and toes (S92.-with 7th character B)
- traumatic amputation of ankle and foot (S98.-)
Use additional code — inherited from Chapter 19
Report an additional code alongside S91.20 to fully describe the condition. S91.20 is sequenced first.
- code to identify any retained foreign body, if applicable (Z18.-)
Excludes2 — not included here — inherited from Chapter 19
The conditions below are not part of S91.20, but a patient may have both at the same time. When documentation supports it, S91.20 and the excluded code may both be reported.
Excludes2 — not included here — inherited from S90-S99
The conditions below are not part of S91.20, but a patient may have both at the same time. When documentation supports it, S91.20 and the excluded code may both be reported.
Code also — inherited from S91
Two codes may be needed to describe the condition fully. Whether S91.20 is sequenced first depends on the reason for the encounter.
- any associated wound infection
What codes fall under S91.20? (7)
- S91.201Unspecified open wound of right great toe with damage to nailnot billable
- S91.202Unspecified open wound of left great toe with damage to nailnot billable
- S91.203Unspecified open wound of unspecified great toe with damage to nailnot billable
- S91.204Unspecified open wound of right lesser toe(s) with damage to nailnot billable
- S91.205Unspecified open wound of left lesser toe(s) with damage to nailnot billable
- S91.206Unspecified open wound of unspecified lesser toe(s) with damage to nailnot billable
- S91.209Unspecified open wound of unspecified toe(s) with damage to nailnot billable
How long has S91.20 existed?
S91.20 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.
What other codes are in the S91.2 family? (5)
- S91.21Laceration without foreign body of toe with damage to nailnot billable
- S91.22Laceration with foreign body of toe with damage to nailnot billable
- S91.23Puncture wound without foreign body of toe with damage to nailnot billable
- S91.24Puncture wound with foreign body of toe with damage to nailnot billable
- S91.25Open bite of toe with damage to nailnot billable