Z90
Z90: Acquired absence of organs, not elsewhere classified
Non-billable headerICD-10-CM
Z90 is a non-billable header ICD-10-CM code for acquired absence of organs, not elsewhere classified. It cannot be billed on its own: choose one of the more specific child codes below.
Excludes1: never code together
These conditions cannot occur together. Billing both on the same encounter is a denial.
- congenital absence - see Alphabetical Index
Excludes2: not included here, but may coexist
The excluded condition is not part of this code, but a patient can have both. You may code both.
- postprocedural absence of endocrine glands (E89.-)
Includes
Conditions this code covers.
- postprocedural or post-traumatic loss of body part NEC
Other codes that can never be billed with Z90
Their own Excludes1 notes name this code, so the conflict is not listed above.
- D73.0Hyposplenism
Risk adjustment
No CMS-HCC V28 category: this code does not change a RAF score.
Code history
Unchanged in every release from FY2024 to FY2027.
Code to one of these instead Z90
9 child codes. Green means billable.
- Z90.0Acquired absence of part of head and neck
- Z90.1Acquired absence of breast and nipple
- Z90.2Acquired absence of lung [part of]
- Z90.3Acquired absence of stomach [part of]
- Z90.4Acquired absence of other specified parts of digestive tract
- Z90.5Acquired absence of kidney
- Z90.6Acquired absence of other parts of urinary tract
- Z90.7Acquired absence of genital organ(s)
- Z90.8Acquired absence of other organs