Z05.42
Z05.42 — Observation and evaluation of newborn for suspected metabolic condition ruled out
Billable / specific codeICD-10-CMPOA exempt
Z05.42 is a billable, specific ICD-10-CM code for observation and evaluation of newborn for suspected metabolic condition ruled out. It is valid for submission on a claim.
Risk adjustment
Z05.42 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
How Z05.42 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to Z05.42.
- Observation›newborn›suspected condition, related to exposure from the mother or birth process›ruled out›metabolic
Related codes at this level
Codes that share Z05.4. If Z05.42 is not quite right, the correct code is usually one of these.
Questions about Z05.42
- Is Z05.42 a billable ICD-10-CM code?
- Yes. Z05.42 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does Z05.42 sit in the tabular list?
- Factors influencing health status and contact with health services (Z00-Z99), in the block Persons encountering health services for examinations (Z00-Z13).