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ICD-10-CM 2027

ICD-10 code for thumb acquired absence

Z89.01

Acquired absence of thumb

Header — needs a more specific code

From the official ICD-10-CM alphabetic index entry “Absence (of) (organ or part) (complete or partial) › thumb (acquired)”. Page updated September 29, 2026.

About coding thumb acquired absence

The ICD-10-CM code for thumb acquired absence is Z89.01 (Acquired absence of thumb).

Within Z89.0 (acquired absence of thumb and other finger(s)), Z89.01 is specifically for acquired absence of thumb. Related codes cover other finger(s) (Z89.02).

To report this condition, pick the subcode that matches the documentation: Z89.011 (thumb), Z89.012 (thumb) and Z89.019 (thumb).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

More specific thumb acquired absence codes (official index)

  • congenital

Common questions about thumb acquired absence ICD-10 codes

What is the ICD-10 code for thumb acquired absence?

Z89.01 — Acquired absence of thumb (a header code; report a more specific subcode).

Is Z89.01 billable?

No. Z89.01 is a header code. Report one of its more specific subcodes instead.