U.S. ICD-10-CM · FY 2027

H10 ICD-10-CM Code: Conjunctivitis

A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.

Code definition

Official description

H10

Conjunctivitis

ICD-10-CM diagnosis code · United States clinical modification

Classification

Where H10 sits

  1. 1

    Chapter 7

    Diseases of the eye and adnexa (H00-H59)

  2. 2

    Section

    Disorders of conjunctiva (H10-H11)

  3. 3

    Category H10

    Conjunctivitis

  4. 4

    Code H10

    Conjunctivitis

More specific choices

Codes under H10

H10 is a non-billable category. Choose the child code that best matches the documented diagnosis.

Documentation details

Notes for this code

Inclusion terms

No inclusion terms are listed for H10.

Code first

No “code first” instruction is listed for H10.

Use additional code

No “use additional code” instruction is listed for H10.

Excludes1

Conditions that should not be reported together with this code.

  • keratoconjunctivitis (H16.2-)

Excludes2

Conditions not included here that may be reported separately when present.

No Excludes2 note is listed for H10.

Transparency

Source and release

Data release

U.S. ICD-10-CM · FY 2027

Effective date

Oct 1, 2026

This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.

Review the CDC/NCHS ICD-10-CM source

Code-specific guidance

Frequently asked questions

What does ICD-10-CM code H10 mean?

H10 is the FY 2027 U.S. ICD-10-CM code for “Conjunctivitis.”

Is H10 a billable or specific ICD-10-CM code?

No. H10 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.

Where is H10 located in ICD-10-CM?

H10 is listed in Chapter 7, Diseases of the eye and adnexa (H00-H59), within Disorders of conjunctiva (H10-H11) (H10–H11), under category H10, Conjunctivitis.

What coding notes are listed for H10?

No inclusion terms are listed for H10 in this reference record. No code-first instruction is listed. Excludes1 notes: keratoconjunctivitis (H16.2-). No Excludes2 note is listed.

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