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  6. 2024 ICD-10-CM Code H10.4
Version 2024
Non-Billable Code

2024 ICD-10-CM Diagnosis Code H10.4

Chronic conjunctivitis

ICD-10-CM Code:
H10.4
ICD-10 Code for:
Chronic conjunctivitis
Is Billable?
Not Valid for Submission
Code Navigator:

Code Classification

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

H10.4 is a non-specific and non-billable diagnosis code code, consider using a code with a higher level of specificity for a diagnosis of chronic conjunctivitis. The code is not specific and is NOT valid for the year 2024 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 Applicable to Chronic conjunctivitis

Non-specific codes like H10.4 require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10-CM codes with a higher level of specificity when coding for chronic conjunctivitis:

  • H10.40 for Unspecified chronic conjunctivitis - NON-BILLABLE CODE

  • Use H10.401 for Unspecified chronic conjunctivitis, right eye - BILLABLE CODE

  • Use H10.402 for Unspecified chronic conjunctivitis, left eye - BILLABLE CODE

  • Use H10.403 for Unspecified chronic conjunctivitis, bilateral - BILLABLE CODE

  • Use H10.409 for Unspecified chronic conjunctivitis, unspecified eye - BILLABLE CODE

  • H10.41 for Chronic giant papillary conjunctivitis - NON-BILLABLE CODE

  • Use H10.411 for Chronic giant papillary conjunctivitis, right eye - BILLABLE CODE

  • Use H10.412 for Chronic giant papillary conjunctivitis, left eye - BILLABLE CODE

  • Use H10.413 for Chronic giant papillary conjunctivitis, bilateral - BILLABLE CODE

  • Use H10.419 for Chronic giant papillary conjunctivitis, unspecified eye - BILLABLE CODE

  • H10.42 for Simple chronic conjunctivitis - NON-BILLABLE CODE

  • Use H10.421 for Simple chronic conjunctivitis, right eye - BILLABLE CODE

  • Use H10.422 for Simple chronic conjunctivitis, left eye - BILLABLE CODE

  • Use H10.423 for Simple chronic conjunctivitis, bilateral - BILLABLE CODE

  • Use H10.429 for Simple chronic conjunctivitis, unspecified eye - BILLABLE CODE

  • H10.43 for Chronic follicular conjunctivitis - NON-BILLABLE CODE

  • Use H10.431 for Chronic follicular conjunctivitis, right eye - BILLABLE CODE

  • Use H10.432 for Chronic follicular conjunctivitis, left eye - BILLABLE CODE

  • Use H10.433 for Chronic follicular conjunctivitis, bilateral - BILLABLE CODE

  • Use H10.439 for Chronic follicular conjunctivitis, unspecified eye - BILLABLE CODE

  • Use H10.44 for Vernal conjunctivitis - BILLABLE CODE

  • Use H10.45 for Other chronic allergic conjunctivitis - BILLABLE CODE

Clinical Information

  • Chronic Conjunctivitis

    conjunctivitis that is persistent and long-standing.

Patient Education


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:

  • Bacterial or viral infection
  • Allergies
  • Substances that cause irritation
  • Contact lens products, eye drops, or eye ointments

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 2024 - No Change, effective from 10/1/2023 through 9/30/2024
  • FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
  • FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
  • 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. This was the first year ICD-10-CM was implemented into the HIPAA code set.