MCMCB Pro
G90.512

G90.512Complex regional pain syndrome I of left upper limb

Billable / specific codeICD-10-CMleft

G90.512 is a billable, specific ICD-10-CM code for complex regional pain syndrome i of left upper limb. It is valid for submission on a claim.

Risk adjustment

G90.512 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

G90.512 is named in 23 Medicare coverage policies 23 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

  • 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

Related codes at this level

Codes that share G90.51. If G90.512 is not quite right, the correct code is usually one of these.

Questions about G90.512

Is G90.512 a billable ICD-10-CM code?
Yes. G90.512 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does G90.512 sit in the tabular list?
Diseases of the nervous system (G00-G99), in the block Other disorders of the nervous system (G89-G99).
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.