H10.423
✓ Billable
Simple chronic conjunctivitis, bilateral
ICD-10-CM · FY2026 · Diseases of the Eye and Adnexa
Code
H10.423
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 H10.423?
ICD-10-CM code H10.423 represents Simple chronic conjunctivitis, bilateral. It is a billable diagnosis code in the Diseases of the Eye and Adnexa chapter, effective October 1, 2025 – September 30, 2026.
Is H10.423 billable?
Yes. H10.423 is a valid billable ICD-10-CM code for insurance claims and clinical documentation.
What chapter is H10.423 in?
H10.423 belongs to the Diseases of the Eye and Adnexa chapter (H00–H59) of ICD-10-CM.
Related codes in the H10 category
H10
Conjunctivitis
Non-billable
H10.0
Mucopurulent conjunctivitis
Non-billable
H10.1
Acute atopic conjunctivitis
Non-billable
H10.2
Other acute conjunctivitis
Non-billable
H10.3
Unspecified acute conjunctivitis
Non-billable
H10.4
Chronic conjunctivitis
Non-billable
H10.5
Blepharoconjunctivitis
Non-billable
H10.8
Other conjunctivitis
Non-billable
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