MCMedicalCodingSoftware
S33.121S

S33.121S: Dislocation of L2/L3 lumbar vertebra, sequela

Billable / specific codeICD-10-CMPOA exempt

S33.121S is a billable, specific ICD-10-CM code for dislocation of l2/l3 lumbar vertebra, sequela. It is valid for submission on a claim.

Check S33.121S with the rest of the claim: free scrubber

7th character "S": sequela

The appropriate 7th character is to be added to each code from category S33

A
initial encounter
D
subsequent encounter
S
sequela

Excludes1 inherited from the categories above S33.121S

A category’s note binds every code beneath it.

Written on S33: Dislocation and sprain of joints and ligaments of lumbar spine and pelvis

  • nontraumatic rupture or displacement of lumbar intervertebral disc NOS (M51.-)
  • obstetric damage to pelvic joints and ligaments (O71.6)

Excludes2 inherited from the categories above S33.121S

Not part of this code, but both may be coded when both are present.

Written on S33.1: Subluxation and dislocation of lumbar vertebra

  • fracture of lumbar vertebrae (S32.0-)

Written on S33: Dislocation and sprain of joints and ligaments of lumbar spine and pelvis

  • dislocation and sprain of joints and ligaments of hip (S73.-)
  • strain of muscle of lower back and pelvis (S39.01-)

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Medicare coverage

S33.121S is named in 7 Medicare coverage policies: 7 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

  • A53057Billing and Coding: Home Health Occupational Therapy
  • A53058Billing and Coding: Home Health Physical Therapy
  • A53064Billing and Coding: Outpatient Occupational Therapy
  • A53065Billing and Coding: Outpatient Physical Therapy

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under S33.121

ICD-10-CMFY2027· effective October 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.