2022 ICD-10-CM Code H10

Conjunctivitis

Version 2021

Not Valid for Submission

ICD-10:H10
Short Description:Conjunctivitis
Long Description:Conjunctivitis

Code Classification

  • Diseases of the eye and adnexa (H00–H59)
    • Disorders of conjunctiva (H10-H11)
      • Conjunctivitis (H10)

H10 is a non-specific and non-billable diagnosis code code, consider using a code with a higher level of specificity for a diagnosis of conjunctivitis. The code is not specific and is NOT valid for the year 2022 for the submission of HIPAA-covered transactions. Category or Header define the heading of a category of codes that may be further subdivided by the use of 4th, 5th, 6th or 7th characters.

Specific Coding for Conjunctivitis

Non-specific codes like H10 require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10 codes with a higher level of specificity when coding for conjunctivitis:

  • NON-BILLABLE CODE - H10.0 for Mucopurulent conjunctivitis
  • NON-BILLABLE CODE - H10.01 for Acute follicular conjunctivitis
  • NON-BILLABLE CODE - H10.02 for Other mucopurulent conjunctivitis
  • NON-BILLABLE CODE - H10.1 for Acute atopic conjunctivitis
  • BILLABLE CODE - Use H10.10 for Acute atopic conjunctivitis, unspecified eye
  • BILLABLE CODE - Use H10.11 for Acute atopic conjunctivitis, right eye
  • BILLABLE CODE - Use H10.12 for Acute atopic conjunctivitis, left eye
  • BILLABLE CODE - Use H10.13 for Acute atopic conjunctivitis, bilateral
  • NON-BILLABLE CODE - H10.2 for Other acute conjunctivitis
  • NON-BILLABLE CODE - H10.21 for Acute toxic conjunctivitis
  • NON-BILLABLE CODE - H10.22 for Pseudomembranous conjunctivitis
  • NON-BILLABLE CODE - H10.23 for Serous conjunctivitis, except viral
  • NON-BILLABLE CODE - H10.3 for Unspecified acute conjunctivitis
  • BILLABLE CODE - Use H10.30 for Unspecified acute conjunctivitis, unspecified eye
  • BILLABLE CODE - Use H10.31 for Unspecified acute conjunctivitis, right eye
  • BILLABLE CODE - Use H10.32 for Unspecified acute conjunctivitis, left eye
  • BILLABLE CODE - Use H10.33 for Unspecified acute conjunctivitis, bilateral
  • NON-BILLABLE CODE - H10.4 for Chronic conjunctivitis
  • NON-BILLABLE CODE - H10.40 for Unspecified chronic conjunctivitis
  • NON-BILLABLE CODE - H10.41 for Chronic giant papillary conjunctivitis
  • NON-BILLABLE CODE - H10.42 for Simple chronic conjunctivitis
  • NON-BILLABLE CODE - H10.43 for Chronic follicular conjunctivitis
  • BILLABLE CODE - Use H10.44 for Vernal conjunctivitis
  • BILLABLE CODE - Use H10.45 for Other chronic allergic conjunctivitis
  • NON-BILLABLE CODE - H10.5 for Blepharoconjunctivitis
  • NON-BILLABLE CODE - H10.50 for Unspecified blepharoconjunctivitis
  • NON-BILLABLE CODE - H10.51 for Ligneous conjunctivitis
  • NON-BILLABLE CODE - H10.52 for Angular blepharoconjunctivitis
  • NON-BILLABLE CODE - H10.53 for Contact blepharoconjunctivitis
  • NON-BILLABLE CODE - H10.8 for Other conjunctivitis
  • NON-BILLABLE CODE - H10.81 for Pingueculitis
  • NON-BILLABLE CODE - H10.82 for Rosacea conjunctivitis
  • BILLABLE CODE - Use H10.89 for Other conjunctivitis
  • BILLABLE CODE - Use H10.9 for Unspecified conjunctivitis

Tabular List of Diseases and Injuries

The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more. The following references are applicable to the code H10:


Type 1 Excludes

Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.

Clinical Information

Information for Patients


Pink Eye

Conjunctivitis is the medical name for pink eye. It involves inflammation of the outer layer of the eye and inside of the eyelid. It can cause swelling, itching, burning, discharge, and redness. Causes include

Pink eye usually does not affect vision. Infectious pink eye can easily spread from one person to another. The infection will clear in most cases without medical care, but bacterial pink eye needs treatment with antibiotic eye drops or ointment.

NIH: National Eye Institute


[Learn More in MedlinePlus]

Code History

  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016 (First year ICD-10-CM implemented into the HIPAA code set)