Z90.89 Acquired absence of other organs

✓ Billable ICD-10-CM 2026
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The ICD-10-CM code for Acquired absence of other organs is Z90.89 (FY2026). It is a billable, claim-ready diagnosis code.

Classification

Section
Z77-Z99: Persons with potential health hazards related to family and personal history and certain conditions influencing health status (Z77-Z99)
Category Z90
31 codes (22 billable)
FY2026 Status
Stable since FY2024

Also Known As

ICD-10-CM Alphabetic Index entries that lead to Z90.89:

  • Absence (of) (organ or part) (complete or partial) › rib (acquired)
  • Absence (of) (organ or part) (complete or partial) › organ › or site, congenital NEC › acquired NEC

U.S. Hospital Utilization

  • An estimated 109,515 U.S. inpatient stays in 2023 included Z90.89 among the documented diagnoses.

Source: National Inpatient Sample (NIS), Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality, 2016–2023. National survey-weighted estimates.

Official Coding Guidelines

Used with any code in range A00.0-T88.9, Z00-Z99

1) Used with any code in the range of A00.0-T88.9, Z00-Z99 An external cause code may be used with any code in the range of A00.0-T88.9, Z00-Z99, classification that represents a health condition due to an external cause. Though they are most applicable to injuries, they are also valid for use with such things as infections or diseases due to an external source, and other health conditions, such as a heart attack that occurs during strenuous physical activity.

— ICD-10-CM Official Guidelines for Coding and Reporting, FY2026, Section I.C.20.a.1
Additional codes with observation code (fragment)

observation code, but only if they are unrelated to the suspected condition being observed.

— ICD-10-CM Official Guidelines for Coding and Reporting, FY2026, Section I.C.21.c.6

Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026

References

Related Codes

Parent Code

Z90 Acquired absence of organs, not elsewhere classified

Related Codes in Z90

Z90 Acquired absence of organs, not elsewhere classified Z90.0 Acquired absence of part of head and neck Z90.01 Acquired absence of eye Z90.02 Acquired absence of larynx Z90.09 Acquired absence of other part of head and neck Z90.1 Acquired absence of breast and nipple Z90.10 Acquired absence of unspecified breast and nipple Z90.11 Acquired absence of right breast and nipple Z90.12 Acquired absence of left breast and nipple Z90.13 Acquired absence of bilateral breasts and nipples Z90.2 Acquired absence of lung [part of] Z90.3 Acquired absence of stomach [part of] Z90.4 Acquired absence of other specified parts of digestive tract Z90.41 Acquired absence of pancreas Z90.410 Acquired total absence of pancreas Z90.411 Acquired partial absence of pancreas Z90.49 Acquired absence of other specified parts of digestive tract Z90.5 Acquired absence of kidney Z90.6 Acquired absence of other parts of urinary tract Z90.7 Acquired absence of genital organ(s)
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Reviewed by Prajwal Shrestha, CPC, CRC
Certified Professional Coder (CPC) and Certified Risk Adjustment Coder (CRC) · AAPC Member ID 01997614 · About · Editorial policy · Content last reviewed: 2025-10-01

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