S86.999 — Other injury of unspecified muscle(s) and tendon(s) at lower leg level, unspecified leg
Is S86.999 billable?
No — S86.999 is a non-billable header code. S86.999 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 3 billable codes beneath S86.999.
Billable codes under this header
- S86.999AOther injury of unspecified muscle(s) and tendon(s) at lower leg level, unspecified leg, initial encounter
- S86.999DOther injury of unspecified muscle(s) and tendon(s) at lower leg level, unspecified leg, subsequent encounter
- S86.999SOther injury of unspecified muscle(s) and tendon(s) at lower leg level, unspecified leg, sequela
S86.999 at a glance
| Code | S86.999 |
|---|---|
| Description | Other injury of unspecified muscle(s) and tendon(s) at lower leg level, unspecified leg |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
How is S86.999 listed in the Alphabetic Index?
The Alphabetic Index lists these routes under S86.99, the nearest indexed parent of S86.999. Use them to find the family, then select the specific code.
- Injury › muscle › leg › specified › type NEC
Use additional code — inherited from Chapter 19
Report an additional code alongside S86.999 to fully describe the condition. S86.999 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 S86.999, but a patient may have both at the same time. When documentation supports it, S86.999 and the excluded code may both be reported.
Excludes2 — not included here — inherited from S80-S89
The conditions below are not part of S86.999, but a patient may have both at the same time. When documentation supports it, S86.999 and the excluded code may both be reported.
Excludes2 — not included here — inherited from S86
The conditions below are not part of S86.999, but a patient may have both at the same time. When documentation supports it, S86.999 and the excluded code may both be reported.
Code also — inherited from S86
Two codes may be needed to describe the condition fully. Whether S86.999 is sequenced first depends on the reason for the encounter.
- any associated open wound (S81.-)
What codes fall under S86.999? (3)
- S86.999AOther injury of unspecified muscle(s) and tendon(s) at lower leg level, unspecified leg, initial encounter
- S86.999DOther injury of unspecified muscle(s) and tendon(s) at lower leg level, unspecified leg, subsequent encounter
- S86.999SOther injury of unspecified muscle(s) and tendon(s) at lower leg level, unspecified leg, sequela
How long has S86.999 existed?
S86.999 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.