S91.10 — Unspecified open wound of toe without damage to nail
Is S91.10 billable?
No — S91.10 is a non-billable header code. S91.10 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 S91.10.
Billable codes under this header
- S91.101AUnspecified open wound of right great toe without damage to nail, initial encounter
- S91.101DUnspecified open wound of right great toe without damage to nail, subsequent encounter
- S91.101SUnspecified open wound of right great toe without damage to nail, sequela
- S91.102AUnspecified open wound of left great toe without damage to nail, initial encounter
- S91.102DUnspecified open wound of left great toe without damage to nail, subsequent encounter
- S91.102SUnspecified open wound of left great toe without damage to nail, sequela
- S91.103AUnspecified open wound of unspecified great toe without damage to nail, initial encounter
- S91.103DUnspecified open wound of unspecified great toe without damage to nail, subsequent encounter
- S91.103SUnspecified open wound of unspecified great toe without damage to nail, sequela
- S91.104AUnspecified open wound of right lesser toe(s) without damage to nail, initial encounter
- S91.104DUnspecified open wound of right lesser toe(s) without damage to nail, subsequent encounter
- S91.104SUnspecified open wound of right lesser toe(s) without damage to nail, sequela
- S91.105AUnspecified open wound of left lesser toe(s) without damage to nail, initial encounter
- S91.105DUnspecified open wound of left lesser toe(s) without damage to nail, subsequent encounter
- S91.105SUnspecified open wound of left lesser toe(s) without damage to nail, sequela
- S91.106AUnspecified open wound of unspecified lesser toe(s) without damage to nail, initial encounter
- S91.106DUnspecified open wound of unspecified lesser toe(s) without damage to nail, subsequent encounter
- S91.106SUnspecified open wound of unspecified lesser toe(s) without damage to nail, sequela
- S91.109AUnspecified open wound of unspecified toe(s) without damage to nail, initial encounter
- S91.109DUnspecified open wound of unspecified toe(s) without damage to nail, subsequent encounter
- S91.109SUnspecified open wound of unspecified toe(s) without damage to nail, sequela
S91.10 at a glance
| Code | S91.10 |
|---|---|
| Description | Unspecified open wound of toe without 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 S91.10 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 S91.10 to fully describe the condition. S91.10 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 S91.10, but a patient may have both at the same time. When documentation supports it, S91.10 and the excluded code may both be reported.
Excludes2 — not included here — inherited from S90-S99
The conditions below are not part of S91.10, but a patient may have both at the same time. When documentation supports it, S91.10 and the excluded code may both be reported.
Code also — inherited from S91
Two codes may be needed to describe the condition fully. Whether S91.10 is sequenced first depends on the reason for the encounter.
- any associated wound infection
What codes fall under S91.10? (7)
- S91.101Unspecified open wound of right great toe without damage to nailnot billable
- S91.102Unspecified open wound of left great toe without damage to nailnot billable
- S91.103Unspecified open wound of unspecified great toe without damage to nailnot billable
- S91.104Unspecified open wound of right lesser toe(s) without damage to nailnot billable
- S91.105Unspecified open wound of left lesser toe(s) without damage to nailnot billable
- S91.106Unspecified open wound of unspecified lesser toe(s) without damage to nailnot billable
- S91.109Unspecified open wound of unspecified toe(s) without damage to nailnot billable
How long has S91.10 existed?
S91.10 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 S91.1 family? (5)
- S91.11Laceration without foreign body of toe without damage to nailnot billable
- S91.12Laceration with foreign body of toe without damage to nailnot billable
- S91.13Puncture wound without foreign body of toe without damage to nailnot billable
- S91.14Puncture wound with foreign body of toe without damage to nailnot billable
- S91.15Open bite of toe without damage to nailnot billable