2026 ICD-10-CM Diagnosis Code Z90Acquired absence of organs, not elsewhere classified

ICD-10-CM Codes›Z00–Z99›Z77-Z99›Z90

ICD-10-CM Z90
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

Z90 is a non-billable ICD-10-CM category code for acquired absence of organs, not elsewhere classified, so it cannot be submitted on claims. Use a more specific code from this category instead, such as Z90.01, Z90.02, Z90.09, and Z90.10.

Code Identity

ICD-10-CM Code
Z90
Billable Status
No — Non-Billable Category
Code Describes
Acquired absence of organs, not elsewhere classified
Chapter
Z77-Z99
Persons with potential health hazards related to family and personal history and certain conditions influencing health status

Code Classification

ChapterZ00–Z99Factors influencing health status and contact with health services
SectionZ77-Z99Persons with potential health hazards related to family and personal history and certain conditions influencing health status
CategoryZ90Acquired absence of organs, not elsewhere classified
This CodeZ90Acquired absence of organs, not elsewhere classified

Specific Coding for Acquired absence of organs, not elsewhere classifiedOverview

Non-specific codes like Z90 require more characters. Use one of these billable codes instead:

  • Z90.0 for Acquired absence of part of head and neck

  • Use Z90.01 for Acquired absence of eye

  • Use Z90.02 for Acquired absence of larynx

  • Use Z90.09 for Acquired absence of other part of head and neck

  • Z90.1 for Acquired absence of breast and nipple

  • Use Z90.10 for Acquired absence of unspecified breast and nipple

  • Use Z90.11 for Acquired absence of right breast and nipple

  • Use Z90.12 for Acquired absence of left breast and nipple

  • Use Z90.13 for Acquired absence of bilateral breasts and nipples

  • Use Z90.2 for Acquired absence of lung [part of]

  • Use Z90.3 for Acquired absence of stomach [part of]

  • Z90.4 for Acquired absence of other specified parts of digestive tract

  • Z90.41 for Acquired absence of pancreas

  • Use Z90.49 for Acquired absence of other specified parts of digestive tract

  • Use Z90.5 for Acquired absence of kidney

  • Use Z90.6 for Acquired absence of other parts of urinary tract

  • Z90.7 for Acquired absence of genital organ(s)

  • Z90.71 for Acquired absence of cervix and uterus

  • Z90.72 for Acquired absence of ovaries

  • Use Z90.79 for Acquired absence of other genital organ(s)

  • Z90.8 for Acquired absence of other organs

  • Use Z90.81 for Acquired absence of spleen

  • Use Z90.89 for Acquired absence of other organs

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Includes

  • postprocedural or post-traumatic loss of body part NEC

Type 1 Excludes

  • congenital absence - see Alphabetical Index

Type 2 Excludes

  • postprocedural absence of endocrine glands E89

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About Z90Overview

Is Z90 (Acquired absence of organs, not elsewhere classified) a billable code?

No. This is a category header that groups the codes for acquired absence of organs, not elsewhere classified, and headers cannot be submitted on claims. Claims for acquired absence of organs, not elsewhere classified need a more specific code from this category, such as Z90.01, Z90.02, and Z90.09.