O26.642 — Intrahepatic cholestasis of pregnancy, second trimester
O26.642 is a billable, specific ICD-10-CM code for intrahepatic cholestasis of pregnancy, second trimester. It is valid for submission on a claim.
Excludes2 inherited from the categories above O26.642
Also inherited, and the opposite of Excludes1: these conditions are not part of O26.642, but a patient can have both, so you may code both.
Other codes that can never be billed with O26.642
These codes carry an Excludes1 note pointing at O26.642. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading O26.642 alone.
- Z03.7Encounter for suspected maternal and fetal conditions ruled out
Risk adjustment
O26.642 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.
Code history
O26.642 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.
Related codes at this level
Codes that share O26.64. If O26.642 is not quite right, the correct code is usually one of these.
Questions about O26.642
- Is O26.642 a billable ICD-10-CM code?
- Yes. O26.642 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does O26.642 sit in the tabular list?
- Pregnancy, childbirth and the puerperium (O00-O9A), in the block Other maternal disorders predominantly related to pregnancy (O20-O29).