H10.4Header code — not billable
Chronic conjunctivitis
- Chapter
- 7. Diseases of the eye and adnexa
- Category
- H10
- Effective date
- October 1, 2026
Related codes in category H10
H10ConjunctivitisH10.0Mucopurulent conjunctivitisH10.01Acute follicular conjunctivitisH10.011Acute follicular conjunctivitis, right eyeYesH10.012Acute follicular conjunctivitis, left eyeYesH10.013Acute follicular conjunctivitis, bilateralYesH10.019Acute follicular conjunctivitis, unspecified eyeYesH10.02Other mucopurulent conjunctivitisH10.021Other mucopurulent conjunctivitis, right eyeYesH10.022Other mucopurulent conjunctivitis, left eyeYesH10.023Other mucopurulent conjunctivitis, bilateralYesH10.029Other mucopurulent conjunctivitis, unspecified eyeYes
Frequently asked questions
What is ICD-10 code H10.4?
H10.4 is an ICD-10-CM diagnosis code for Chronic conjunctivitis.
Is H10.4 a billable code?
No. H10.4 is a category/header code, not billable on its own — use one of its more specific child codes instead.
What ICD-10-CM chapter is H10.4 in?
H10.4 falls under Chapter 7: Diseases of the eye and adnexa.
When did H10.4 become effective?
H10.4 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to H10.4?
H10.4 belongs to category H10, which includes 12 other codes — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.