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.

Check Z89.421 with the rest of the claim: free scrubber

Excludes1 inherited from the categories above Z89.421

A category’s note binds every code beneath it.

Written on Z89: Acquired absence of limb

acquired deformities of limbs (M20-M21)
congenital absence of limbs (Q71-Q73)

Excludes2 inherited from the categories above Z89.421

Not part of this code, but both may be coded when both are present.

Written on Z89.42: Acquired absence of other toe(s)

acquired absence of great toe (Z89.41-)

Other codes that can never be billed with Z89.421

Their own Excludes1 notes name this code, so the conflict is not listed above.

M20Acquired deformities of fingers and toes
M21Other acquired deformities of limbs

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Medicare coverage

Z89.421 is named in 3 Medicare coverage policies: 3 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

A53058Billing and Coding: Home Health Physical Therapy
A53065Billing and Coding: Outpatient Physical Therapy
A57311Billing and Coding: Physical Therapy - Home Health

Code history

Unchanged in every release from FY2024 to FY2027.