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ICD-10-CM 2027

ICD-10 code for cauda equina concussion

S34.3

Injury of cauda equina

Header — needs a more specific code

From the official ICD-10-CM alphabetic index entry “Concussion (brain) (cerebral) (current) › cauda equina”. Page updated September 29, 2026.

About coding cauda equina concussion

The ICD-10-CM code for cauda equina concussion is S34.3 (Injury of cauda equina).

Within S34 (injury of lumbar and sacral spinal cord and nerves at abdomen, lower back and pelvis level), S34.3 is specifically for injury of cauda equina. Related codes cover concussion and edema of lumbar and sacral spinal cord (S34.0), other and unspecified injury of lumbar and sacral spinal cord (S34.1), injury of nerve root of lumbar and sacral spine (S34.2), injury of lumbosacral plexus (S34.4), injury of lumbar, sacral and pelvic sympathetic nerves (S34.5), injury of peripheral nerve(s) at abdomen, lower back and pelvis level (S34.6), injury of other nerves at abdomen, lower back and pelvis level (S34.8) and injury of unspecified nerves at abdomen, lower back and pelvis level (S34.9).

Codes in this range require a 7th character: A for initial encounter, D for subsequent encounter and S for sequela. Use placeholder "X" characters to fill any empty positions before the 7th character.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Common questions about cauda equina concussion ICD-10 codes

What is the ICD-10 code for cauda equina concussion?

S34.3 — Injury of cauda equina (a header code; report a more specific subcode).

Is S34.3 billable?

No. S34.3 is a header code. Report one of its more specific subcodes instead.