MCMCB Pro
Y07.420

Y07.420Foster father, perpetrator of maltreatment and neglect

Billable / specific codeICD-10-CMPOA exempt

Y07.420 is a billable, specific ICD-10-CM code for foster father, perpetrator of maltreatment and neglect. It is valid for submission on a claim.

Risk adjustment

Y07.420 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 Y07.420 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 Y07.420.

  • Perpetrator, perpetration, of assault, maltreatment and neglectfoster father
  • Perpetrator, perpetration, of assault, maltreatment and neglectfatherfoster

Related codes at this level

Codes that share Y07.42. If Y07.420 is not quite right, the correct code is usually one of these.

Questions about Y07.420

Is Y07.420 a billable ICD-10-CM code?
Yes. Y07.420 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does Y07.420 sit in the tabular list?
External causes of morbidity (V00-Y99), in the block Assault (X92-Y09).
ICD-10-CMFY2026-Apr· effective April 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release — see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.