S88.029D — Partial traumatic amputation at knee level, unspecified lower leg, subsequent encounter
Is S88.029D billable?
Yes, but S88.029D is an unspecified code. S88.029D is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, S88.029D 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 S88.029D — the more specific alternatives are listed below.
S88.029D at a glance
| Code | S88.029D |
|---|---|
| Description | Partial traumatic amputation at knee level, unspecified lower 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 S88.029D?
In S88.029D, the 7th character D means subsequent encounter. The 7th character is required for S88.029D to be a valid, complete code.
Same condition, different episode of care — switch the 7th character:
Which MS-DRGs does S88.029D group to?
S88.029D 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 S88.029D listed in the Alphabetic Index?
The Alphabetic Index lists these routes under S88.02, the nearest indexed parent of S88.029D. Use them to find the family, then select the specific code.
- Amputation › traumatic › leg › at knee level › partial
Excludes1 — never code together — inherited from S88
The conditions below can never be reported together with S88.029D on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- traumatic amputation of ankle and foot (S98.-)
Use additional code — inherited from Chapter 19
Report an additional code alongside S88.029D to fully describe the condition. S88.029D 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 S88.029D, but a patient may have both at the same time. When documentation supports it, S88.029D and the excluded code may both be reported.
Excludes2 — not included here — inherited from S80-S89
The conditions below are not part of S88.029D, but a patient may have both at the same time. When documentation supports it, S88.029D and the excluded code may both be reported.
How long has S88.029D existed?
S88.029D 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.