ICD-10-CM 2027
ICD-10 code for cauda equina lesion
From the official ICD-10-CM alphabetic index entry “Lesion (s) (nontraumatic) › cauda equina”. Page updated September 29, 2026.
About coding cauda equina lesion
The ICD-10-CM code for cauda equina lesion is G83.4 (Cauda equina syndrome).
Within G83 (other paralytic syndromes), G83.4 is specifically for cauda equina syndrome. Related codes cover diplegia of upper limbs (G83.0), monoplegia of lower limb (G83.1), monoplegia of upper limb (G83.2), monoplegia, unspecified (G83.3), Locked-in state (G83.5), other specified paralytic syndromes (G83.8) and paralytic syndrome, unspecified (G83.9).
Don't report G83.4 together with the conditions in its Excludes1 note: cord bladder NOS (G95.89) and neurogenic bladder NOS (N31.9).
As a secondary diagnosis it is a CC (complication or comorbidity), which can move an inpatient stay into the "with CC" MS-DRG of its family, unless the principal diagnosis excludes it.
Don't confuse with (Excludes1 for G83.4)
Common questions about cauda equina lesion ICD-10 codes
What is the ICD-10 code for cauda equina lesion?
- G83.4 — Cauda equina syndrome.
Is G83.4 billable?
- Yes. G83.4 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can G83.4 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict G83.4 as a principal diagnosis.
Is G83.4 a CC or MCC?
- G83.4 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.