Observation for reason NOS

ICD10 Diagnosis
Dx:	Observation for reason NOS
ICD10 code:	Z04.8
Pre-ICD10 counterpart:	none assigned
Charlson/ALERT Scale:	none
APACHE Como Component:	none
APACHE Acute Component:	none
Start Date:
Stop Date:
Data Dependencies(Reports/Indicators/Data Elements):	No results
External ICD10 Documentation	ICD-10 CM Wikipedia ICD-10 Wikipedia WHO ICD10 documentation ICD10data.com

This diagnosis is a part of ICD10 collection.

Additional Info

This is a "wastebasket" code for clinical observation that does not fit under any of the other observation codes (see below).
Observation refers to being watched for having a clinical condition, BUT it turned out after all that that condition was NOT present.
use this code for drug desensitization and combine with Allergic reaction (allergy), NOS

	JALT Allan is this the correct use for drug desensitization, we used to have an old code for this but now we do not Lisa Kaita 10:24, 2022 June 20 (CDT)

Observation codes:

none found

Skin	Trauma	Renal/urinary	Infectious disease
ENT	Testing	Cardiovascular	Hereditary/congenital
Eye	Mechanism	Neoplastic	Heme/immunology
Misc	Reproductive	Gastrointestinal	Musculoskeletal/soft tissue
Psych	Respiratory	Poisoning
Neuro	Symptom/Sign	Endocrine disorder