H50.42
✓ Billable
Monofixation syndrome
ICD-10-CM · FY2026 · Diseases of the Eye and Adnexa
Code
H50.42
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 H50.42?
ICD-10-CM code H50.42 represents Monofixation syndrome. It is a billable diagnosis code in the Diseases of the Eye and Adnexa chapter, effective October 1, 2025 – September 30, 2026.
Is H50.42 billable?
Yes. H50.42 is a valid billable ICD-10-CM code for insurance claims and clinical documentation.
What chapter is H50.42 in?
H50.42 belongs to the Diseases of the Eye and Adnexa chapter (H00–H59) of ICD-10-CM.
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