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

2024 ICD-10-CM Diagnosis Code H10

Conjunctivitis

ICD-10-CM Code:
H10
ICD-10 Code for:
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 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 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 Conjunctivitis

Non-specific codes like H10 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 conjunctivitis:

  • 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 - NON-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 - 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 - NON-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 - 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 - NON-BILLABLE CODE

  • Use H10.44 for Vernal conjunctivitis - BILLABLE CODE

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

  • Use H10.89 for Other conjunctivitis - BILLABLE CODE

  • Use H10.9 for Unspecified conjunctivitis - BILLABLE CODE

Clinical Information

  • Conjunctivitis

    inflammation of the conjunctiva.

  • Conjunctivitis, Acute Hemorrhagic

    a highly contagious disease characterized by subconjunctival hemorrhage, sudden swelling of the eyelids and congestion, redness, and pain in the eye. epidemic conjunctivitis caused by enterovirus 70 (ev-70) was first described in africa in 1969. it is caused also by coxsackievirus a24 variant (ca24v). epidemics by this organism have appeared most frequently in asia.

  • Conjunctivitis, Allergic

    conjunctivitis due to hypersensitivity to various allergens.

  • Conjunctivitis, Bacterial

    purulent infections of the conjunctiva by several species of gram-negative, gram-positive, or acid-fast organisms. some of the more commonly found genera causing conjunctival infections are haemophilus, streptococcus, neisseria, and chlamydia.

  • Conjunctivitis, Inclusion

    an infection of the eyes characterized by the presence in conjunctival epithelial cells of inclusion bodies indistinguishable from those of trachoma. it is acquired by infants during birth and by adults from swimming pools. the etiological agent is chlamydia trachomatis whose natural habitat appears to be the genito-urinary tract. inclusion conjunctivitis is a less severe disease than trachoma and usually clears up spontaneously.

  • Conjunctivitis, Viral

    inflammation, often mild, of the conjunctiva caused by a variety of viral agents. conjunctival involvement may be part of a systemic infection.

  • Chlamydia trachomatis

    type species of chlamydia causing a variety of ocular and urogenital diseases.

Tabular List of Diseases and Injuries

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


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.
  • keratoconjunctivitis H16.2

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.