S86.91 — Strain of unspecified muscle and tendon at lower leg level
Is S86.91 billable?
No — S86.91 is a non-billable header code. S86.91 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 9 billable codes beneath S86.91.
Billable codes under this header
- S86.911AStrain of unspecified muscle(s) and tendon(s) at lower leg level, right leg, initial encounter
- S86.911DStrain of unspecified muscle(s) and tendon(s) at lower leg level, right leg, subsequent encounter
- S86.911SStrain of unspecified muscle(s) and tendon(s) at lower leg level, right leg, sequela
- S86.912AStrain of unspecified muscle(s) and tendon(s) at lower leg level, left leg, initial encounter
- S86.912DStrain of unspecified muscle(s) and tendon(s) at lower leg level, left leg, subsequent encounter
- S86.912SStrain of unspecified muscle(s) and tendon(s) at lower leg level, left leg, sequela
- S86.919AStrain of unspecified muscle(s) and tendon(s) at lower leg level, unspecified leg, initial encounter
- S86.919DStrain of unspecified muscle(s) and tendon(s) at lower leg level, unspecified leg, subsequent encounter
- S86.919SStrain of unspecified muscle(s) and tendon(s) at lower leg level, unspecified leg, sequela
S86.91 at a glance
| Code | S86.91 |
|---|---|
| Description | Strain of unspecified muscle and tendon at lower leg level |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
How is S86.91 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to S86.91. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Injury › muscle › leg › strain
Use additional code — inherited from Chapter 19
Report an additional code alongside S86.91 to fully describe the condition. S86.91 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 S86.91, but a patient may have both at the same time. When documentation supports it, S86.91 and the excluded code may both be reported.
Excludes2 — not included here — inherited from S80-S89
The conditions below are not part of S86.91, but a patient may have both at the same time. When documentation supports it, S86.91 and the excluded code may both be reported.
Excludes2 — not included here — inherited from S86
The conditions below are not part of S86.91, but a patient may have both at the same time. When documentation supports it, S86.91 and the excluded code may both be reported.
Code also — inherited from S86
Two codes may be needed to describe the condition fully. Whether S86.91 is sequenced first depends on the reason for the encounter.
- any associated open wound (S81.-)
What codes fall under S86.91? (3)
How long has S86.91 existed?
S86.91 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.