MCMCB Pro
Z89.512

Z89.512Acquired absence of left leg below knee

Billable / specific codeICD-10-CMPOA exemptleft

Z89.512 is a billable, specific ICD-10-CM code for acquired absence of left leg below knee. It is valid for submission on a claim.

Risk adjustment

Z89.512 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:

  • HCC 409 Amputation Status, Lower Limb/Amputation Complications0.598 RAF

Coefficient shown for the Community Non-dual Aged segment. A higher HCC in the same hierarchy will suppress this one, so capturing it does not always add score.

Medicare coverage

Z89.512 is named in 5 Medicare coverage policies 5 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 Z89.51. If Z89.512 is not quite right, the correct code is usually one of these.

Questions about Z89.512

Is Z89.512 a billable ICD-10-CM code?
Yes. Z89.512 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does Z89.512 sit in the tabular list?
Factors influencing health status and contact with health services (Z00-Z99), in the block Persons with potential health hazards related to family and personal history and certain conditions influencing health status (Z77-Z99).
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.