H53.121 ICD-10-CM Code: Transient visual loss, right eye
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FY 2026 Apr update / Diseases of the eye and adnexa (H00-H59) / Visual disturbances and blindness (H53-H54)
H53.121
Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidanceTransient visual loss, right eye
A temporary loss of vision in the right eye that resolves on its own, lasting from seconds to minutes.
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
Official- Scintillating scotoma
Excludes 2
OfficialICD-10-CM does not list Excludes 2 notes for H53.121 in this effective period.
Related Child Codes
Includes
OfficialICD-10-CM does not list Includes notes for H53.121 in this effective period.
Excludes 1
Official- amaurosis fugax (G45.3-)
- transient retinal artery occlusion (H34.0-)
Code First
OfficialICD-10-CM does not list Code First sequencing instructions for H53.121 in this effective period.
Use Additional
OfficialICD-10-CM does not list Use Additional Code instructions for H53.121 in this effective period.
Code Also
OfficialICD-10-CM does not list Code Also instructions for H53.121 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 H53.121 an HCC code?
No. H53.121 is a billable ICD-10-CM code but does not map to any HCC category in V28, V24, ESRD, or RxHCC.
This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).
What This Code Means
H53.121 is the ICD-10-CM diagnosis code for transient visual loss, right eye. A temporary loss of vision in the right eye that resolves on its own, lasting from seconds to minutes. H53.121 sits in the ICD-10-CM chapter for diseases of the eye and adnexa (h00-h59), within the section covering visual disturbances and blindness (h53-h54).
H53.121 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.
Transient visual loss is temporary; document duration and resolution in medical record.
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for H53.121 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •Transient visual loss is temporary; document duration and resolution in medical record
- •The '2' in fourth position indicates transient loss; the '1' indicates right eye