Z90
Acquired absence of organs, not elsewhere classified
Not billable — category only FY2026 2025-10-01 → 2026-09-30
Exclusions 2 never code together
Z90code
Excludes1 — never code together. The excluded condition and this one are mutually exclusive.
Excludes2 — not included here, but the patient may have both. Code both when documented.
Instructional notes 5
Z90code
Includes
- postprocedural or post-traumatic loss of body part NEC
Z00-Z99chapter
Notes
- Z codes represent reasons for encounters. A corresponding procedure code must accompany a Z code if a procedure is performed. Categories Z00-Z99 are provided for occasions when circumstances other than a disease, injury or external cause classifiable to categories A00-Y89 are recorded as 'diagnoses' or 'problems'. This can arise in two main ways:Z00-Z99A00-Y89
- (a) When a person who may or may not be sick encounters the health services for some specific purpose, such as to receive limited care or service for a current condition, to donate an organ or tissue, to receive prophylactic vaccination (immunization), or to discuss a problem which is in itself not a disease or injury.
- (b) When some circumstance or problem is present which influences the person's health status but is not in itself a current illness or injury.
Index entries leading here filed at null
No alphabetic index entry points at this code.
Subordinate codes 9
Z90.0 Acquired absence of part of head and neck Z90.1 Acquired absence of breast and nipple 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 Z90.5 Acquired absence of kidney Z90.6 Acquired absence of other parts of urinary tract Z90.7 Acquired absence of genital organ(s) Z90.8 Acquired absence of other organs
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.