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U.S. ICD-10-CM · FY 2027

H20 ICD-10-CM Code: Iridocyclitis

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

Code definition

Official description

H20

Iridocyclitis

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

Classification

Where H20 sits

  1. 1

    Chapter 7

    Diseases of the eye and adnexa (H00-H59)

  2. 2

    Section

    Disorders of sclera, cornea, iris and ciliary body (H15-H22)

  3. 3

    Category H20

    Iridocyclitis

  4. 4

    Code H20

    Iridocyclitis

More specific choices

Codes under H20

H20 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 H20.

Code first

No “code first” instruction is listed for H20.

Use additional code

No “use additional code” instruction is listed for H20.

Excludes1

Conditions that should not be reported together with this code.

No Excludes1 note is listed for H20.

Excludes2

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

No Excludes2 note is listed for H20.

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 H20 mean?

H20 is the FY 2027 U.S. ICD-10-CM code for “Iridocyclitis.”

Is H20 a billable or specific ICD-10-CM code?

No. H20 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 H20 located in ICD-10-CM?

H20 is listed in Chapter 7, Diseases of the eye and adnexa (H00-H59), within Disorders of sclera, cornea, iris and ciliary body (H15-H22) (H15–H22), under category H20, Iridocyclitis.

What coding notes are listed for H20?

No inclusion terms are listed for H20 in this reference record. No code-first instruction is listed. No Excludes1 note is listed. No Excludes2 note is listed.

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