Pregnancy related conditions, unspecified, second trimester

ValidICD-10-CM diagnosis code.

Valid for claims with a date of service in the current code year.

Valid FY2016 onwards.

What has happened to this code

Every change the publisher made, from 2007 to now. Entries marked draft are from the pre-implementation releases: ICD-10 took effect on 1 October 2015, so nothing before FY2016 was ever valid on a claim.

FY2007 Added to the draft code set draft Pregnancy related condition, unspecified, second trimester
FY2010 Draft description revised draft ~~Pregnancy related condition, unspecified, second trimester~~ Pregnancy related conditions, unspecified, second trimester

Official coding rules

Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.

Inherited from the O20-O29 section Other maternal disorders predominantly related to pregnancy (O20-O29)

Excludes2 - not included here

maternal care related to the fetus and amniotic cavity and possible delivery problems (O30-O48)
maternal diseases classifiable elsewhere but complicating pregnancy, labor and delivery, and the puerperium (O98-O99)

How CDC's index refers to this code

Wording from the official alphabetic index. Much of it appears nowhere in the code description, which is why a search for the everyday phrase so often finds nothing.

Pregnancy > high-risk
Supervision > pregnancy
Pregnancy > normal > high-risk
Supervision > high-risk pregnancy
Pregnancy > examination > high-risk
Encounter > pregnancy > supervision of
Pregnancy > prenatal care only > high-risk
Pregnancy > complicated by > previous history of
Pregnancy > complicated NOS

Codes in the same group

Code	Description	Status
O26.90	Pregnancy related conditions, unspecified, unspecified trimester	Valid
O26.91	Pregnancy related conditions, unspecified, first trimester	Valid
O26.93	Pregnancy related conditions, unspecified, third trimester	Valid