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S34.3XXA

S34.3XXAInjury of cauda equina, initial encounter

Billable / specific codeICD-10-CM

S34.3XXA is a billable, specific ICD-10-CM code for injury of cauda equina, initial encounter. It is valid for submission on a claim.

7th character "A" — initial encounter

The appropriate 7th character is to be added to each code from category S34

A
initial encounter
D
subsequent encounter
S
sequela

Risk adjustment

S34.3XXA risk-adjusts. Under the CMS-HCC V28 model it maps to this category:

  • HCC 182 Spinal Cord Disorders/Injuries0.478 RAF

Coefficient shown for the Community Non-dual Aged segment. A higher HCC in the same hierarchy will suppress this one, so capturing it does not always add score.

Medicare coverage

S34.3XXA 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.

  • A54095Billing and Coding: Nerve Conduction Studies and Electromyography
  • A54969Billing and Coding: Nerve Conduction Studies and Electromyography
  • A56619Billing and Coding: Nerve Conduction Studies and Electromyography
  • A56722Billing and Coding: Intraoperative Neurophysiological Testing

Related codes at this level

Codes that share S34.3. If S34.3XXA is not quite right, the correct code is usually one of these.

Questions about S34.3XXA

Is S34.3XXA a billable ICD-10-CM code?
Yes. S34.3XXA is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does S34.3XXA 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).
ICD-10-CMFY2026-Apr· effective April 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release — see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.