S91.0 — Open wound of ankle
Is S91.0 billable?
No — S91.0 is a non-billable header code. S91.0 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 54 billable codes beneath S91.0.
Billable codes under this header
- S91.001AUnspecified open wound, right ankle, initial encounter
- S91.001DUnspecified open wound, right ankle, subsequent encounter
- S91.001SUnspecified open wound, right ankle, sequela
- S91.002AUnspecified open wound, left ankle, initial encounter
- S91.002DUnspecified open wound, left ankle, subsequent encounter
- S91.002SUnspecified open wound, left ankle, sequela
- S91.009AUnspecified open wound, unspecified ankle, initial encounter
- S91.009DUnspecified open wound, unspecified ankle, subsequent encounter
- S91.009SUnspecified open wound, unspecified ankle, sequela
- S91.011ALaceration without foreign body, right ankle, initial encounter
- S91.011DLaceration without foreign body, right ankle, subsequent encounter
- S91.011SLaceration without foreign body, right ankle, sequela
- S91.012ALaceration without foreign body, left ankle, initial encounter
- S91.012DLaceration without foreign body, left ankle, subsequent encounter
- S91.012SLaceration without foreign body, left ankle, sequela
- S91.019ALaceration without foreign body, unspecified ankle, initial encounter
- S91.019DLaceration without foreign body, unspecified ankle, subsequent encounter
- S91.019SLaceration without foreign body, unspecified ankle, sequela
- S91.021ALaceration with foreign body, right ankle, initial encounter
- S91.021DLaceration with foreign body, right ankle, subsequent encounter
- S91.021SLaceration with foreign body, right ankle, sequela
- S91.022ALaceration with foreign body, left ankle, initial encounter
- S91.022DLaceration with foreign body, left ankle, subsequent encounter
- S91.022SLaceration with foreign body, left ankle, sequela
- S91.029ALaceration with foreign body, unspecified ankle, initial encounter
- S91.029DLaceration with foreign body, unspecified ankle, subsequent encounter
- S91.029SLaceration with foreign body, unspecified ankle, sequela
- S91.031APuncture wound without foreign body, right ankle, initial encounter
- S91.031DPuncture wound without foreign body, right ankle, subsequent encounter
- S91.031SPuncture wound without foreign body, right ankle, sequela
- S91.032APuncture wound without foreign body, left ankle, initial encounter
- S91.032DPuncture wound without foreign body, left ankle, subsequent encounter
- S91.032SPuncture wound without foreign body, left ankle, sequela
- S91.039APuncture wound without foreign body, unspecified ankle, initial encounter
- S91.039DPuncture wound without foreign body, unspecified ankle, subsequent encounter
- S91.039SPuncture wound without foreign body, unspecified ankle, sequela
- S91.041APuncture wound with foreign body, right ankle, initial encounter
- S91.041DPuncture wound with foreign body, right ankle, subsequent encounter
- S91.041SPuncture wound with foreign body, right ankle, sequela
- S91.042APuncture wound with foreign body, left ankle, initial encounter
- S91.042DPuncture wound with foreign body, left ankle, subsequent encounter
- S91.042SPuncture wound with foreign body, left ankle, sequela
- S91.049APuncture wound with foreign body, unspecified ankle, initial encounter
- S91.049DPuncture wound with foreign body, unspecified ankle, subsequent encounter
- S91.049SPuncture wound with foreign body, unspecified ankle, sequela
- S91.051AOpen bite, right ankle, initial encounter
- S91.051DOpen bite, right ankle, subsequent encounter
- S91.051SOpen bite, right ankle, sequela
- S91.052AOpen bite, left ankle, initial encounter
- S91.052DOpen bite, left ankle, subsequent encounter
- S91.052SOpen bite, left ankle, sequela
- S91.059AOpen bite, unspecified ankle, initial encounter
- S91.059DOpen bite, unspecified ankle, subsequent encounter
- S91.059SOpen bite, unspecified ankle, sequela
S91.0 at a glance
| Code | S91.0 |
|---|---|
| Description | Open wound of ankle |
| 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 S91.0 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 S91.0 to fully describe the condition. S91.0 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 S91.0, but a patient may have both at the same time. When documentation supports it, S91.0 and the excluded code may both be reported.
Excludes2 — not included here — inherited from S90-S99
The conditions below are not part of S91.0, but a patient may have both at the same time. When documentation supports it, S91.0 and the excluded code may both be reported.
Code also — inherited from S91
Two codes may be needed to describe the condition fully. Whether S91.0 is sequenced first depends on the reason for the encounter.
- any associated wound infection
What codes fall under S91.0? (6)
- S91.00Unspecified open wound of anklenot billable
- S91.01Laceration without foreign body of anklenot billable
- S91.02Laceration with foreign body of anklenot billable
- S91.03Puncture wound without foreign body of anklenot billable
- S91.04Puncture wound with foreign body of anklenot billable
- S91.05Open bite of anklenot billable
How long has S91.0 existed?
S91.0 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.