ICD-10-CM › O00-O9A › O10-O16 › O11 Pre-existing hypertension with... › O11.9

O11.9

Pre-existing hypertension with pre-eclampsia, unspecified 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.

  1. FY2007 Added to the draft code set draft Pre-existing hypertensive disorder with superimposed proteinuria, unspecified trimester
  2. FY2011 Draft description revised draft Pre-existing hypertensive disorder with superimposed proteinuria, unspecified trimester Pre-existing hypertension with pre-eclampsia, unspecified 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 O11 Pre-existing hypertension with pre-eclampsia

Use additional code

  • code from O10 to identify the type of hypertension

Includes

  • conditions in O10 complicated by pre-eclampsia
  • pre-eclampsia superimposed pre-existing hypertension

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.

Showing 40 of 47 index phrases.

Codes in the same group

CodeDescriptionStatus
O11.1 Pre-existing hypertension with pre-eclampsia, first trimester Valid
O11.2 Pre-existing hypertension with pre-eclampsia, second trimester Valid
O11.3 Pre-existing hypertension with pre-eclampsia, third trimester Valid
O11.4 Pre-existing hypertension with pre-eclampsia, complicating childbirth Valid
O11.5 Pre-existing hypertension with pre-eclampsia, complicating the puerperium Valid