S85.999D — Other specified injury of unspecified blood vessel at lower leg level, unspecified leg, subsequent encounter
Is S85.999D billable?
Yes, but S85.999D is an unspecified code. S85.999D is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, S85.999D is an unspecified or catch-all code. Payers apply additional scrutiny to unspecified codes and many deny them when the medical record supports a more specific option, so check the documentation before selecting S85.999D — the more specific alternatives are listed below.
More specific alternatives
- S85.001DUnspecified injury of popliteal artery, right leg, subsequent encounter
- S85.101DUnspecified injury of unspecified tibial artery, right leg, subsequent encounter
- S85.201DUnspecified injury of peroneal artery, right leg, subsequent encounter
- S85.301DUnspecified injury of greater saphenous vein at lower leg level, right leg, subsequent encounter
- S85.401DUnspecified injury of lesser saphenous vein at lower leg level, right leg, subsequent encounter
- S85.501DUnspecified injury of popliteal vein, right leg, subsequent encounter
- S85.801DUnspecified injury of other blood vessels at lower leg level, right leg, subsequent encounter
S85.999D at a glance
| Code | S85.999D |
|---|---|
| Description | Other specified injury of unspecified blood vessel at lower leg level, unspecified leg, subsequent encounter |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
| 7th character "D" | subsequent encounter |
What does the 7th character "D" mean in S85.999D?
In S85.999D, the 7th character D means subsequent encounter. The 7th character is required for S85.999D to be a valid, complete code.
Same condition, different episode of care — switch the 7th character:
Which MS-DRGs does S85.999D group to?
S85.999D sits in MDC 23 and helps define the logic of 2 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 949Aftercare with CC/MCCmedical
- 950Aftercare without CC/MCCmedical
How is S85.999D listed in the Alphabetic Index?
The Alphabetic Index lists these routes under S85.99, the nearest indexed parent of S85.999D. Use them to find the family, then select the specific code.
- Injury › blood vessel NEC › leg › specified › type NEC
Use additional code — inherited from Chapter 19
Report an additional code alongside S85.999D to fully describe the condition. S85.999D 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 S85.999D, but a patient may have both at the same time. When documentation supports it, S85.999D and the excluded code may both be reported.
Excludes2 — not included here — inherited from S80-S89
The conditions below are not part of S85.999D, but a patient may have both at the same time. When documentation supports it, S85.999D and the excluded code may both be reported.
Excludes2 — not included here — inherited from S85
The conditions below are not part of S85.999D, but a patient may have both at the same time. When documentation supports it, S85.999D and the excluded code may both be reported.
- injury of blood vessels at ankle and foot level (S95.-)
Code also — inherited from S85
Two codes may be needed to describe the condition fully. Whether S85.999D is sequenced first depends on the reason for the encounter.
- any associated open wound (S81.-)
How long has S85.999D existed?
S85.999D 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.