H20.033 ICD-10-CM Code: Secondary infectious iridocyclitis, bilateral
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FY 2026 Apr update / Diseases of the eye and adnexa (H00-H59) / Disorders of sclera, cornea, iris and ciliary body (H15-H22)
H20.033
Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidanceSecondary infectious iridocyclitis, bilateral
This is an inflammation of the iris and ciliary body (the colored part of the eye and the muscle that controls focus) that occurs in both eyes as a result of an infection elsewhere in the body. The infection has spread to or triggered inflammation in the eye structures.
CMS-HCC V28
00
RAF 0
CMS-HCC V24
00
RAF 0
ACA/HHS
00
RAF 0
ESRD/PACE
00
RAF 0
RXHCC
00
RAF 0
Code Trumping
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Code Book Path
Inclusion Terms
OfficialICD-10-CM does not list inclusion terms for H20.033 in this effective period.
Excludes 2
OfficialICD-10-CM does not list Excludes 2 notes for H20.033 in this effective period.
Related Child Codes
Includes
OfficialICD-10-CM does not list Includes notes for H20.033 in this effective period.
Excludes 1
OfficialICD-10-CM does not list Excludes 1 notes for H20.033 in this effective period.
Code First
OfficialICD-10-CM does not list Code First sequencing instructions for H20.033 in this effective period.
Use Additional
OfficialICD-10-CM does not list Use Additional Code instructions for H20.033 in this effective period.
Code Also
OfficialICD-10-CM does not list Code Also instructions for H20.033 in this effective period.
Buddy Documentation Tip
Last updated: FY2026 ICD-10-CM Apr update, Apr 1, 2026 through Sep 30, 2026. CMS-HCC V28 is 100% phased in for payment year 2026.
Is H20.033 an HCC code?
No. H20.033 is a billable ICD-10-CM code but does not map to any HCC category in V28, V24, ESRD, or RxHCC.
Coder workflow notes
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This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).
What This Code Means
H20.033 is the ICD-10-CM diagnosis code for secondary infectious iridocyclitis, bilateral. This is an inflammation of the iris and ciliary body (the colored part of the eye and the muscle that controls focus) that occurs in both eyes as a result of an infection elsewhere in the body. The infection has spread to or triggered inflammation in the eye structures. H20.033 sits in the ICD-10-CM chapter for diseases of the eye and adnexa (h00-h59), within the section covering disorders of sclera, cornea, iris and ciliary body (h15-h22).
H20.033 is a billable ICD-10-CM code but does not map to a payment HCC under the CMS-HCC V28, V24, ESRD, or RxHCC risk adjustment models. It can be reported on Medicare Advantage encounter data submissions but it does not contribute to a beneficiary's RAF score and therefore does not affect risk-adjusted payments to the plan.
Always verify that the iridocyclitis is confirmed as secondary to an infectious process and affects both eyes before assigning this code.
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for H20.033 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •Always verify that the iridocyclitis is confirmed as secondary to an infectious process and affects both eyes before assigning this code
- •This code requires documentation of the underlying infectious cause; consider assigning an additional code to identify the primary infection (such as tuberculosis, syphilis, or other systemic infections) for complete clinical documentation