S34.21XS — Injury of nerve root of lumbar spine, sequela
S34.21XS is a billable, specific ICD-10-CM code for injury of nerve root of lumbar spine, sequela. It is valid for submission on a claim.
7th character "S" — sequela
The appropriate 7th character is to be added to each code from category S34
- A
- initial encounter
- D
- subsequent encounter
- S
- sequela
Risk adjustment
S34.21XS does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Medicare coverage
S34.21XS is named in 16 Medicare coverage policies — 16 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A53057Billing and Coding: Home Health Occupational Therapy
- A53064Billing and Coding: Outpatient Occupational Therapy
- A53065Billing and Coding: Outpatient Physical Therapy
- A54095Billing and Coding: Nerve Conduction Studies and Electromyography
Code history
S34.21XS has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.
Related codes at this level
Codes that share S34.21. If S34.21XS is not quite right, the correct code is usually one of these.
Questions about S34.21XS
- Is S34.21XS a billable ICD-10-CM code?
- Yes. S34.21XS is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does S34.21XS sit in the tabular list?
- Injury, poisoning and certain other consequences of external causes (S00-T88), in the block Injuries to the abdomen, lower back, lumbar spine, pelvis and external genitals (S30-S39).