MCMCB Pro
S23.101D

S23.101DDislocation of unspecified thoracic vertebra, subsequent encounter

Billable / specific codeICD-10-CMPOA exempt

S23.101D is a billable, specific ICD-10-CM code for dislocation of unspecified thoracic vertebra, subsequent encounter. It is valid for submission on a claim.

7th character "D" — subsequent encounter

The appropriate 7th character is to be added to each code from category S23

A
initial encounter
D
subsequent encounter
S
sequela

Risk adjustment

S23.101D 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

S23.101D is named in 1 Medicare coverage policy 1 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

  • A53058Billing and Coding: Home Health Physical Therapy

Related codes at this level

Codes that share S23.101. If S23.101D is not quite right, the correct code is usually one of these.

Questions about S23.101D

Is S23.101D a billable ICD-10-CM code?
Yes. S23.101D is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does S23.101D sit in the tabular list?
Injury, poisoning and certain other consequences of external causes (S00-T88), in the block Injuries to the thorax (S20-S29).
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.