Z89.421
Z89.421 — Acquired absence of other right toe(s)
Billable / specific codeICD-10-CMPOA exemptright
Z89.421 is a billable, specific ICD-10-CM code for acquired absence of other right toe(s). It is valid for submission on a claim.
Risk adjustment
Z89.421 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
Z89.421 is named in 3 Medicare coverage policies — 3 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
- A53065Billing and Coding: Outpatient Physical Therapy
- A57311Billing and Coding: Physical Therapy - Home Health
Related codes at this level
Codes that share Z89.42. If Z89.421 is not quite right, the correct code is usually one of these.
Questions about Z89.421
- Is Z89.421 a billable ICD-10-CM code?
- Yes. Z89.421 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does Z89.421 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).