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ICD-10-CM · FY 2026 APRIL UPDATE

H20

Iridocyclitis

Diagnosis reference

Nonbillable category

This entry is a category or subcategory. Choose the appropriate billable descendant based on the clinical documentation.

Effective periodOctober 1, 2026–September 30, 2027
SourceCMS ICD-10-CM order file
ClassificationDiagnosis · clinical modification

Related entries

Up to 30 descendants in this category

CODEDESCRIPTIONTYPE
H20.0Acute and subacute iridocyclitisCategory
H20.00Unspecified acute and subacute iridocyclitisBillable
H20.01Primary iridocyclitisCategory
H20.011Primary iridocyclitis, right eyeBillable
H20.012Primary iridocyclitis, left eyeBillable
H20.013Primary iridocyclitis, bilateralBillable
H20.019Primary iridocyclitis, unspecified eyeBillable
H20.02Recurrent acute iridocyclitisCategory
H20.021Recurrent acute iridocyclitis, right eyeBillable
H20.022Recurrent acute iridocyclitis, left eyeBillable
H20.023Recurrent acute iridocyclitis, bilateralBillable
H20.029Recurrent acute iridocyclitis, unspecified eyeBillable
H20.03Secondary infectious iridocyclitisCategory
H20.031Secondary infectious iridocyclitis, right eyeBillable
H20.032Secondary infectious iridocyclitis, left eyeBillable
H20.033Secondary infectious iridocyclitis, bilateralBillable
H20.039Secondary infectious iridocyclitis, unspecified eyeBillable
H20.04Secondary noninfectious iridocyclitisCategory
H20.041Secondary noninfectious iridocyclitis, right eyeBillable
H20.042Secondary noninfectious iridocyclitis, left eyeBillable
H20.043Secondary noninfectious iridocyclitis, bilateralBillable
H20.049Secondary noninfectious iridocyclitis, unspecified eyeBillable
H20.05HypopyonCategory
H20.051Hypopyon, right eyeBillable
H20.052Hypopyon, left eyeBillable
H20.053Hypopyon, bilateralBillable
H20.059Hypopyon, unspecified eyeBillable
H20.1Chronic iridocyclitisCategory
H20.10Chronic iridocyclitis, unspecified eyeBillable
H20.11Chronic iridocyclitis, right eyeBillable

Use the complete reference

This reference does not reproduce the full tabular hierarchy, inclusion notes, Excludes1/2 notes, sequencing instructions, or seventh-character rules. Review the official tables and coding guidelines.

Open official CMS files

ICD-10-CM codes describe diagnoses. They do not have an independent Medicare PFS reimbursement amount, and billability alone does not establish coverage.