Alphabetic Index · main term
Under observation
Under observation is a main term in the FY2027 ICD-10-CM Alphabetic Index (Index to Diseases and Injuries). It is a cross-reference: the Index sends you to Observation, which lists Z04.9. Confirm the code in the Tabular List before you report it.
Where the Index sends you
see Observation (following) (for) (without need for further medical care)
Encounter for examination and observation for unspecified reason
First-level subterms 17
- accident NECZ04.3
- adverse effect of drugZ03.6
- alleged rape or sexual assault (victim), ruled out
- criminal assaultZ04.89
- development state
- disease, specified NECZ03.89
- following work accidentZ04.2
- forced sexual exploitationZ04.81
- forced labor exploitationZ04.82
- growth and development state see Observation, development state