ICD-10-CM 2027
ICD-10 code for extremity acquired absence
From the official ICD-10-CM alphabetic index entry “Absence (of) (organ or part) (complete or partial) › extremity (acquired)”. Page updated September 29, 2026.
About coding extremity acquired absence
The ICD-10-CM code for extremity acquired absence is Z89.9 (Acquired absence of limb, unspecified). The official index lists 4 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on Z89.9.
Within Z89, choose Z89.9 (unspecified) only when documentation doesn't support a more specific option: thumb and other finger(s) (Z89.0), hand and wrist (Z89.1), upper limb above wrist (Z89.2), toe(s), foot, and ankle (Z89.4), leg below knee (Z89.5) and leg above knee (Z89.6).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 951 (Other Factors Influencing Health Status, relative weight 0.5577), in MDC 23 (Factors Influencing Health Status and Other Contacts with Health Services), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
More specific extremity acquired absence codes (official index)
- congenital Q73.0 — Congenital absence of unspecified limb(s)
- knee (following explantation of knee joint prosthesis) (joint) (with or without presence of antibiotic-impregnated cement spacer) Z89.52 — Acquired absence of knee
- lower (above knee) Z89.619 — Acquired absence of unspecified leg above knee
- below knee Z89.51 — Acquired absence of leg below knee
- upper
Common questions about extremity acquired absence ICD-10 codes
What is the ICD-10 code for extremity acquired absence?
- Z89.9 — Acquired absence of limb, unspecified. More specific codes apply when the documentation supports them: Q73.0, Z89.52, Z89.619, Z89.51.
What is the ICD-10 code for congenital extremity acquired absence?
- Q73.0 — Congenital absence of unspecified limb(s).
What is the ICD-10 code for knee extremity acquired absence?
- Z89.52 — Acquired absence of knee (header code; choose a more specific subcode).
What is the ICD-10 code for lower extremity acquired absence?
- Z89.619 — Acquired absence of unspecified leg above knee.
Is Z89.9 billable?
- Yes. Z89.9 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can Z89.9 be used as a principal diagnosis?
- No. It is not acceptable as the principal diagnosis for an inpatient stay; it may be reported as a secondary diagnosis.
Is Z89.9 a CC or MCC?
- No. Z89.9 is neither a CC nor an MCC under MS-DRG v44.0.