S93.402 — Sprain of unspecified ligament of left ankle
Is S93.402 billable?
No — S93.402 is a non-billable header code. S93.402 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 S93.402.
S93.402 at a glance
| Code | S93.402 |
|---|---|
| Description | Sprain of unspecified ligament of left ankle |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
How is S93.402 listed in the Alphabetic Index?
The Alphabetic Index lists these routes under S93.40, the nearest indexed parent of S93.402. Use them to find the family, then select the specific code.
- Sprain › ankle (joint) (ligament)
Use additional code — inherited from Chapter 19
Report an additional code alongside S93.402 to fully describe the condition. S93.402 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 S93.402, but a patient may have both at the same time. When documentation supports it, S93.402 and the excluded code may both be reported.
Excludes2 — not included here — inherited from S90-S99
The conditions below are not part of S93.402, but a patient may have both at the same time. When documentation supports it, S93.402 and the excluded code may both be reported.
Excludes2 — not included here — inherited from S93
The conditions below are not part of S93.402, but a patient may have both at the same time. When documentation supports it, S93.402 and the excluded code may both be reported.
- strain of muscle and tendon of ankle and foot (S96.-)
Excludes2 — not included here — inherited from S93.4
The conditions below are not part of S93.402, but a patient may have both at the same time. When documentation supports it, S93.402 and the excluded code may both be reported.
- injury of Achilles tendon (S86.0-)
Code also — inherited from S93
Two codes may be needed to describe the condition fully. Whether S93.402 is sequenced first depends on the reason for the encounter.
- any associated open wound
What codes fall under S93.402? (3)
How long has S93.402 existed?
S93.402 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.