H44.323 ICD-10-CM Code: Siderosis of eye, bilateral
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FY 2026 Apr update / Diseases of the eye and adnexa (H00-H59) / Disorders of vitreous body and globe (H43-H44)
H44.323
Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidanceSiderosis of eye, bilateral
Siderosis is a condition where iron deposits accumulate in both eyes, causing progressive vision loss and retinal damage.
CMS-HCC V28
N/A—
Not mapped
CMS-HCC V24
N/A—
Not mapped
ACA/HHS
N/A—
Not mapped
ESRD/PACE
N/A—
Not mapped
RXHCC
N/A—
Not mapped
Code Book Path
Inclusion Terms
OfficialICD-10-CM does not list inclusion terms for H44.323 in this effective period.
Excludes 2
OfficialICD-10-CM does not list Excludes 2 notes for H44.323 in this effective period.
Related Child Codes
Includes
OfficialICD-10-CM does not list Includes notes for H44.323 in this effective period.
Excludes 1
OfficialICD-10-CM does not list Excludes 1 notes for H44.323 in this effective period.
Code First
OfficialICD-10-CM does not list Code First sequencing instructions for H44.323 in this effective period.
Use Additional
OfficialICD-10-CM does not list Use Additional Code instructions for H44.323 in this effective period.
Code Also
OfficialICD-10-CM does not list Code Also instructions for H44.323 in this effective period.
Buddy Documentation Tip
Current with CMS: FY2026 ICD-10-CM Apr 1 update (effective Apr 1 – Sep 30, 2026) · CMS-HCC V28, 100% phased in for payment year 2026. FY2027 code set already staged for October 1, 2026. How HCC Buddy stays current →
Is H44.323 an HCC code?
No. H44.323 is a billable ICD-10-CM code but does not map to any HCC category in V28, V24, ESRD, or RxHCC.
- Code
- H44.323
- Description
- Siderosis of eye, bilateral
- HCC (V28)
- No CMS-HCC V28 mapping
- RAF
- —
- Billable
- Yes
- Payment year
- 2026
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
H44.323 is the ICD-10-CM diagnosis code for siderosis of eye, bilateral. Siderosis is a condition where iron deposits accumulate in both eyes, causing progressive vision loss and retinal damage. H44.323 sits in the ICD-10-CM chapter for diseases of the eye and adnexa (h00-h59), within the section covering disorders of vitreous body and globe (h43-h44).
H44.323 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.
Siderosis results from iron exposure, often occupational; ensure bilateral involvement is clearly documented before using this code.
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for H44.323 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.