ICD-10-CM › O00-O9A › O10-O16 › O codes › O16

O16

Unspecified maternal hypertension

Not billableICD-10-CM diagnosis code.

This code exists but cannot be submitted on its own. It groups the more specific codes beneath it.

A category header for its whole life, FY2016 onwards. It has never been valid for submission on its own.

Submit one of these 6 more specific codes instead:

  • O16.1 Unspecified maternal hypertension, first trimester
  • O16.2 Unspecified maternal hypertension, second trimester
  • O16.3 Unspecified maternal hypertension, third trimester
  • O16.4 Unspecified maternal hypertension, complicating childbirth
  • O16.5 Unspecified maternal hypertension, complicating the puerperium
  • O16.9 Unspecified maternal hypertension, unspecified trimester

What has happened to this code

Every change the publisher made, from 2012 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. FY2012 Added to the draft code set draft Unspecified maternal 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 48 index phrases.