ICD-10-CM › I00-I99 › I10-I1A › I1A Other hypertension › I1A.0

I1A.0

Resistant hypertension

ValidICD-10-CM diagnosis code.

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

Valid FY2024 onwards.

What has happened to this code

Every change the publisher made, from 2024 to now.

  1. FY2024 Added to the code set Resistant hypertension

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 I10-I1A section Hypertensive diseases (I10-I1A)

Excludes1 - never coded here

  • neonatal hypertension (P29.2)
  • primary pulmonary hypertension (I27.0)

Excludes2 - not included here

  • hypertensive disease complicating pregnancy, childbirth and the puerperium (O10-O11, O13-O16)

Use additional code

  • code to identify:
  • exposure to environmental tobacco smoke (Z77.22)
  • history of tobacco dependence (Z87.891)
  • occupational exposure to environmental tobacco smoke (Z57.31)
  • tobacco dependence (F17.-)
  • tobacco use (Z72.0)

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.