2022 ICD-10-CM Code H10.45

Other chronic allergic conjunctivitis

Version 2021

Valid for Submission

ICD-10:H10.45
Short Description:Other chronic allergic conjunctivitis
Long Description:Other chronic allergic conjunctivitis

Code Classification

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

H10.45 is a billable diagnosis code used to specify a medical diagnosis of other chronic allergic conjunctivitis. The code H10.45 is valid during the fiscal year 2022 from October 01, 2021 through September 30, 2022 for the submission of HIPAA-covered transactions.

The ICD-10-CM code H10.45 might also be used to specify conditions or terms like chronic allergic conjunctivitis, limbal and/or corneal involvement in vernal conjunctivitis, limbal vernal conjunctivitis, perennial allergic conjunctivitis or vernal conjunctivitis.

Index to Diseases and Injuries

The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for the code H10.45 are found in the index:

Approximate Synonyms

The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

Convert H10.45 to ICD-9 Code

The General Equivalency Mapping (GEM) crosswalk indicates an approximate mapping between the ICD-10 code H10.45 its ICD-9 equivalent. The approximate mapping means there is not an exact match between the ICD-10 code and the ICD-9 code and the mapped code is not a precise representation of the original code.

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)