S34.121S — Incomplete lesion of L1 level of lumbar spinal cord, sequela
Is S34.121S billable?
Yes — S34.121S is billable for FY2027. S34.121S is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. S34.121S may be submitted for encounters from October 1, 2026 through September 30, 2027.
S34.121S at a glance
| Code | S34.121S |
|---|---|
| Description | Incomplete lesion of L1 level of lumbar spinal cord, sequela |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
| 7th character "S" | sequela |
What does the 7th character "S" mean in S34.121S?
In S34.121S, the 7th character S means sequela. The 7th character is required for S34.121S to be a valid, complete code.
Same condition, different episode of care — switch the 7th character:
Which MS-DRGs does S34.121S group to?
S34.121S sits in MDC 01 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.
- 052Spinal Disorders and Injuries with CC/MCCmedical
- 053Spinal Disorders and Injuries without CC/MCCmedical
How is S34.121S listed in the Alphabetic Index?
The Alphabetic Index lists these routes under S34.121, the nearest indexed parent of S34.121S. Use them to find the family, then select the specific code.
- Injury › spinal › lumbar › incomplete lesion › L1 level
Inclusion terms
Alternative wording in documentation that is classified to S34.121S.
- Incomplete lesion of lumbar spinal cord level 1
Use additional code — inherited from Chapter 19
Report an additional code alongside S34.121S to fully describe the condition. S34.121S 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 S34.121S, but a patient may have both at the same time. When documentation supports it, S34.121S and the excluded code may both be reported.
Excludes2 — not included here — inherited from S30-S39
The conditions below are not part of S34.121S, but a patient may have both at the same time. When documentation supports it, S34.121S and the excluded code may both be reported.
Code also — inherited from S34
Two codes may be needed to describe the condition fully. Whether S34.121S is sequenced first depends on the reason for the encounter.
How long has S34.121S existed?
S34.121S 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.