H49.22 ICD-10-CM Code: Sixth [abducent] nerve palsy, left eye
H49.22 is not a CMS-HCC payment code. MEAT criteria · RAF Calculator · HCC Buddy coding tools
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FY 2026 Apr update / Diseases of the eye and adnexa (H00-H59) / Disorders of ocular muscles, binocular movement, accommodation and refraction (H49-H52)
H49.22
Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidanceSixth [abducent] nerve palsy, left eye
Paralysis of the sixth cranial nerve (abducent nerve) affecting the left eye, causing inability to move the left eye outward and resulting in inward eye deviation.
CMS-HCC V28
N/A—
Not mapped
CMS-HCC V24
HistoricalHistorical
Not used for CY2026 payment
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 H49.22 in this effective period.
Excludes 2
OfficialICD-10-CM does not list Excludes 2 notes for H49.22 in this effective period.
Related Child Codes
Includes
OfficialICD-10-CM does not list Includes notes for H49.22 in this effective period.
Excludes 1
OfficialICD-10-CM does not list Excludes 1 notes for H49.22 in this effective period.
Code First
OfficialICD-10-CM does not list Code First sequencing instructions for H49.22 in this effective period.
Use Additional
OfficialICD-10-CM does not list Use Additional Code instructions for H49.22 in this effective period.
Code Also
OfficialICD-10-CM does not list Code Also instructions for H49.22 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 H49.22 an HCC code?
No. H49.22 is a billable ICD-10-CM code with no mapping under the CMS-HCC V28 or V24 community payment models, and none under the ESRD, Part D RxHCC, or HHS-HCC models.
- Code
- H49.22
- Description
- Sixth [abducent] nerve palsy, left eye
- HCC (V28)
- No CMS-HCC V28 mapping
- RAF reference coefficient
- —
- 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
H49.22 is the ICD-10-CM diagnosis code for sixth [abducent] nerve palsy, left eye. Paralysis of the sixth cranial nerve (abducent nerve) affecting the left eye, causing inability to move the left eye outward and resulting in inward eye deviation. H49.22 sits in the ICD-10-CM chapter for diseases of the eye and adnexa (h00-h59), within the section covering disorders of ocular muscles, binocular movement, accommodation and refraction (h49-h52).
H49.22 is a billable ICD-10-CM code, but the current payload does not show a mapping under the CMS-HCC V28 or V24 community payment models, and none under the ESRD, Part D RxHCC, or HHS-HCC models. Do not assign risk adjustment value from this page when no source-backed mapping is shown; verify the applicable model and payment year.
Verify left eye laterality is explicitly stated in the medical record.
HCC Buddy maintains structured V28 and V24 mapping, source-labeled coefficient references, and MEAT documentation criteria for H49.22 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •Verify left eye laterality is explicitly stated in the medical record
- •Document any associated horizontal diplopia or head positioning to compensate