Acquired absence of organs, not elsewhere classified (Z90) ICD-10-CM
The Z90 code range covers acquired absence of organs, not elsewhere classified with 31 ICD-10-CM diagnosis codes. 22 of them are billable and valid for claim submission in fiscal year 2027, and the category headers group them but cannot themselves be billed.
Includes
This note appears immediately under a three character code title to further define, or give examples of, the content of the category.
- postprocedural or post-traumatic loss of body part NEC
Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
- congenital absence - see Alphabetical Index
Type 2 Excludes
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
- postprocedural absence of endocrine glands E89
Codes in the Z90 Range 31 codes · 22 billable
- Z90 Acquired absence of organs, not elsewhere classifiedNon-billable
- Z90.0 Acquired absence of part of head and neckNon-billable
- 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 nippleNon-billable
- 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 tractNon-billable
- Z90.41 Acquired absence of pancreasNon-billable
- 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)Non-billable
- Z90.71 Acquired absence of cervix and uterusNon-billable
- Z90.710 Acquired absence of both cervix and uterus
- Z90.711 Acquired absence of uterus with remaining cervical stump
- Z90.712 Acquired absence of cervix with remaining uterus
- Z90.72 Acquired absence of ovariesNon-billable
- Z90.721 Acquired absence of ovaries, unilateral
- Z90.722 Acquired absence of ovaries, bilateral
- Z90.79 Acquired absence of other genital organ(s)
- Z90.8 Acquired absence of other organsNon-billable
- Z90.81 Acquired absence of spleen
- Z90.89 Acquired absence of other organs
About the Z90 Code Range
These codes describe organs or parts of organs that are no longer present, called acquired absence. They group the missing parts by body site.
Z90.0 identifies head and neck parts; Z90.1 identifies breast and nipple; Z90.2 and Z90.3 identify lung and stomach. Other branches identify digestive tract parts (Z90.4), kidney (Z90.5), urinary tract parts (Z90.6), genital organs (Z90.7), and other organs (Z90.8).
Breast codes distinguish right, left, and both sides; ovary codes distinguish one side from both. Pancreas codes distinguish total from partial absence. Cervix and uterus codes distinguish whether both are absent or one remains.
Questions About This Page
How many billable codes are in the Z90 range?
Of the 31 codes in this range, 22 are billable and valid for claim submission from October 1, 2026 through September 30, 2027. Category header codes group them but cannot be reported on claims.
What does the Z90 range classify?
The range classifies acquired absence of organs, not elsewhere classified. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
