H26.4Header code — not billable

Secondary cataract

Chapter
7. Diseases of the eye and adnexa
Category
H26
Effective date
October 1, 2026

Related codes in category H26

Frequently asked questions

What is ICD-10 code H26.4?

H26.4 is an ICD-10-CM diagnosis code for Secondary cataract.

Is H26.4 a billable code?

No. H26.4 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 H26.4 in?

H26.4 falls under Chapter 7: Diseases of the eye and adnexa.

When did H26.4 become effective?

H26.4 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to H26.4?

H26.4 belongs to category H26, 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.