ICD-10-CM › H00-H59 › H10-H11 › H10.4 Chronic conjunctivitis › H10.40

H10.40

Unspecified chronic conjunctivitis

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 4 more specific codes instead:

  • H10.401 Unspecified chronic conjunctivitis, right eye
  • H10.402 Unspecified chronic conjunctivitis, left eye
  • H10.403 Unspecified chronic conjunctivitis, bilateral
  • H10.409 Unspecified chronic conjunctivitis, unspecified eye

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 chronic conjunctivitis

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 H10 Conjunctivitis

Excludes1 - never coded here

  • keratoconjunctivitis (H16.2-)

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.

Codes in the same group

CodeDescriptionStatus
H10.41 Chronic giant papillary conjunctivitis Not billable
H10.42 Simple chronic conjunctivitis Not billable
H10.43 Chronic follicular conjunctivitis Not billable
H10.44 Vernal conjunctivitis Valid
H10.45 Other chronic allergic conjunctivitis Valid