MCMCB Pro
S12.9XXD

S12.9XXDFracture of neck, unspecified, subsequent encounter

Billable / specific codeICD-10-CMPOA exempt

S12.9XXD is a billable, specific ICD-10-CM code for fracture of neck, unspecified, subsequent encounter. It is valid for submission on a claim.

7th character "D" — subsequent encounter

The appropriate 7th character is to be added to code S12.9

A
initial encounter
D
subsequent encounter
S
sequela

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

  • Fracture of neck NOS
  • Fracture of cervical spine NOS
  • Fracture of cervical vertebra NOS

Risk adjustment

S12.9XXD does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Medicare coverage

S12.9XXD is named in 10 Medicare coverage policies 10 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

  • A53065Billing and Coding: Outpatient Physical Therapy
  • A57204Billing and Coding: MRI and CT Scans of the Head and Neck
  • A57311Billing and Coding: Physical Therapy - Home Health
  • A59608Billing and Coding: Cervical Fusion

Related codes at this level

Codes that share S12.9. If S12.9XXD is not quite right, the correct code is usually one of these.

Questions about S12.9XXD

Is S12.9XXD a billable ICD-10-CM code?
Yes. S12.9XXD is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does S12.9XXD sit in the tabular list?
Injury, poisoning and certain other consequences of external causes (S00-T88), in the block Injuries to the neck (S10-S19).
ICD-10-CMFY2026-Apr· effective April 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.