Is H20.00 a billable ICD-10 code?

Yes. H20.00 (Unspecified acute and subacute iridocyclitis) is billable and can be used for insurance claims. Always verify payer-specific requirements.

H20.00 ✓ Billable

Unspecified acute and subacute iridocyclitis

Q: What is ICD-10 code H20.00?

ICD-10-CM code H20.00 stands for "Unspecified acute and subacute iridocyclitis". It is a billable code in the Diseases of the Eye and Adnexa chapter, effective FY2026 (Oct 1, 2025 – Sep 30, 2026).

ICD-10-CM · FY2026 · Diseases of the Eye and Adnexa

Code

H20.00

System

ICD-10-CM

Billable

Yes — valid for submission

Effective

FY2026

Chapter

Diseases of the Eye and Adnexa

Source

CMS / CDC NCHS

⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.

Frequently asked questions

What is ICD-10 code H20.00?

ICD-10-CM code H20.00 represents Unspecified acute and subacute iridocyclitis. It is a billable diagnosis code in the Diseases of the Eye and Adnexa chapter, effective October 1, 2025 – September 30, 2026.

Is H20.00 billable?

Yes. H20.00 is a valid billable ICD-10-CM code for insurance claims and clinical documentation.

What chapter is H20.00 in?

H20.00 belongs to the Diseases of the Eye and Adnexa chapter (H00–H59) of ICD-10-CM.

Related codes in the H20 category

H20 Iridocyclitis Non-billable H20.0 Acute and subacute iridocyclitis Non-billable H20.1 Chronic iridocyclitis Non-billable H20.2 Lens-induced iridocyclitis Non-billable H20.8 Other iridocyclitis Non-billable H20.9 Unspecified iridocyclitis Billable H20.01 Primary iridocyclitis Non-billable H20.02 Recurrent acute iridocyclitis Non-billable

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