S33.120A
✓ Billable
Subluxation of L2/L3 lumbar vertebra, initial encounter
ICD-10-CM · FY2026 · Injury, Poisoning and Certain Other Consequences of External Causes
Code
S33.120A
System
ICD-10-CM
Billable
Yes — valid for submission
Effective
FY2026
Chapter
Injury, Poisoning and Certain Other Consequences of External Causes
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Frequently asked questions
What is ICD-10 code S33.120A?
ICD-10-CM code S33.120A represents Subluxation of L2/L3 lumbar vertebra, initial encounter. It is a billable diagnosis code in the Injury, Poisoning and Certain Other Consequences of External Causes chapter, effective October 1, 2025 – September 30, 2026.
Is S33.120A billable?
Yes. S33.120A is a valid billable ICD-10-CM code for insurance claims and clinical documentation.
What chapter is S33.120A in?
S33.120A belongs to the Injury, Poisoning and Certain Other Consequences of External Causes chapter (S00–T88) of ICD-10-CM.
Related codes in the S33 category
S33
Dislocation and sprain of joints and ligaments of lumbar spine and pelvis
Non-billable
S33.0
Traumatic rupture of lumbar intervertebral disc
Non-billable
S33.1
Subluxation and dislocation of lumbar vertebra
Non-billable
S33.10
Subluxation and dislocation of unspecified lumbar vertebra
Non-billable
S33.11
Subluxation and dislocation of L1/L2 lumbar vertebra
Non-billable
S33.12
Subluxation and dislocation of L2/L3 lumbar vertebra
Non-billable
S33.13
Subluxation and dislocation of L3/L4 lumbar vertebra
Non-billable
S33.14
Subluxation and dislocation of L4/L5 lumbar vertebra
Non-billable
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