2026 ICD-10-CM Diagnosis Code H10.89Other conjunctivitis

ICD-10-CM Codes›H00–H59›H10-H11›H10

ICD-10-CM H10.89
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

H10.89 is a billable ICD-10-CM diagnosis code for other conjunctivitis. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 124 through 125. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Cornea and external disease.

Code Identity

ICD-10-CM Code
H10.89
Billable Status
Yes — Valid for Submission
Code Describes
Other conjunctivitis
Short Description
Other conjunctivitis
Same as the full description in the CMS dataset.
Parent Code
H10.8
Other conjunctivitis

Code Classification

ChapterH00–H59Diseases of the eye and adnexa
SectionH10-H11Disorders of conjunctiva
CategoryH10Conjunctivitis
This CodeH10.89Other conjunctivitis

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Acute cicatrizing conjunctivitis due to Stevens-Johnson syndrome
  • Allergic conjunctivitis of bilateral eyes
  • Allergic conjunctivitis of left eye
  • Allergic conjunctivitis of right eye
  • Chronic cicatrizing conjunctivitis caused by drug
  • Chronic cicatrizing conjunctivitis due to Stevens-Johnson syndrome
  • Chronic toxic cicatrizing conjunctivitis
  • Cicatrizing conjunctivitis
  • Cicatrizing conjunctivitis due to linear IgA disease
  • Conjunctival nodule
  • Conjunctival ulcer
  • Conjunctivitis associated with autoimmune skin disorder
  • Conjunctivitis associated with dermatitis herpetiformis
  • Conjunctivitis caused by drug
  • Conjunctivitis with mucocutaneous disorder
  • Contact lens related conjunctivitis
  • Fungal conjunctivitis
  • Granuloma of conjunctiva
  • Granulomatous conjunctivitis
  • Immune-mediated conjunctivitis
  • Infective conjunctivitis
  • Left Parinaud oculoglandular syndrome
  • Necrotizing conjunctivitis
  • Parinaud oculoglandular syndrome
  • Perennial allergic conjunctivitis
  • Perennial allergic conjunctivitis of bilateral eyes
  • Perennial allergic conjunctivitis of left eye
  • Perennial allergic conjunctivitis of right eye
  • Phlyctenular conjunctivitis
  • Post-infectious cicatrizing conjunctivitis
  • Pyogranulomatous conjunctivitis
  • Right Parinaud oculoglandular syndrome
  • Secondary conjunctivitis

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Conjunctivitis(staphylococcal) (streptococcal) NOS
      • Parinaud's
    • Conjunctivitis(staphylococcal) (streptococcal) NOS
      • petrificans
    • Conjunctivitis(staphylococcal) (streptococcal) NOS
      • specified NEC
    • Conjunctivitis(staphylococcal) (streptococcal) NOS
      • traumatic NEC
    • Parinaud's
      • conjunctivitis
    • Parinaud's
      • oculoglandular syndrome
    • Ulcer, ulcerated, ulcerating, ulceration, ulcerative
      • conjunctiva

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR EYE001
Cornea and external disease
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • 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.

Patient EducationClinical

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:

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert H10.89 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
372.39 Conjunctivitis NEC
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About H10.89Overview

Is H10.89 (Other conjunctivitis) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report other conjunctivitis on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does H10.89 group to?

When other conjunctivitis is the principal diagnosis on an inpatient stay, it groups to MS-DRG 124, 125, with relative weights from 0.7678 to 1.3231 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of H10.89?

Under the General Equivalence Mappings, other conjunctivitis converts to ICD-9-CM 372.39 (conjunctivitis NEC). The mapping is approximate, so confirm the match fits the documentation.

Footnotes

[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.