S13.120S
✓ Billable
Subluxation of C1/C2 cervical vertebrae, sequela
ICD-10-CM · FY2026 · Injury, Poisoning and Certain Other Consequences of External Causes
Code
S13.120S
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 S13.120S?
ICD-10-CM code S13.120S represents Subluxation of C1/C2 cervical vertebrae, sequela. 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 S13.120S billable?
Yes. S13.120S is a valid billable ICD-10-CM code for insurance claims and clinical documentation.
What chapter is S13.120S in?
S13.120S belongs to the Injury, Poisoning and Certain Other Consequences of External Causes chapter (S00–T88) of ICD-10-CM.
Related codes in the S13 category
S13
Dislocation and sprain of joints and ligaments at neck level
Non-billable
S13.0
Traumatic rupture of cervical intervertebral disc
Non-billable
S13.1
Subluxation and dislocation of cervical vertebrae
Non-billable
S13.2
Dislocation of other and unspecified parts of neck
Non-billable
S13.4
Sprain of ligaments of cervical spine
Non-billable
S13.5
Sprain of thyroid region
Non-billable
S13.8
Sprain of joints and ligaments of other parts of neck
Non-billable
S13.9
Sprain of joints and ligaments of unspecified parts of neck
Non-billable
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