Z90
ICD-10Non-billable categoryAcquired absence of organs, not elsewhere classified
Official ICD-10-CM descriptor (FY2026)
Acquired absence of organs, not elsewhere classified
Z90 is a category heading, not a billable code. CMS does not accept it on a claim; report one of the more specific codes beneath it.
Includes
- postprocedural or post-traumatic loss of body part NEC
Excludes1
Not coded here. An Excludes1 code should never be reported at the same time as the code above it.
- congenital absence - see Alphabetical Index
Excludes2
Not included here. The condition is not part of this code, but a patient may have both, and both codes may be reported together.
- postprocedural absence of endocrine glands (E89.-)
More specific codes under Z90
- Z90.0Acquired absence of part of head and neckcategory
- Z90.1Acquired absence of breast and nipplecategory
- Z90.2Acquired absence of lung [part of]
- Z90.3Acquired absence of stomach [part of]
- Z90.4Acquired absence of other specified parts of digestive tractcategory
- Z90.5Acquired absence of kidney
- Z90.6Acquired absence of other parts of urinary tract
- Z90.7Acquired absence of genital organ(s)category
- Z90.8Acquired absence of other organscategory
Where this code sits
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ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.