H26.4 – Secondary cataract
ICD-10-CM 2027 diagnosis code · Disorders of lens
ICD-10-CM code
H26.4
- Code
H26.4(claims format:H264)- Description
- Secondary cataract
- Billable
- No – use a more specific code below
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 7. Diseases of the eye and adnexa (H00-H59)
- Block
- H25-H28 Disorders of lens
- Parent codes
- H26
Billable codes under H26.4
H26.4 is a header code and cannot be used on claims. Choose the most specific code:
- H26.40 – Unspecified secondary cataractBillable
- H26.41 – Soemmering's ringHeader (more codes below)
- H26.49 – Other secondary cataractHeader (more codes below)
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
H26 – Other cataract
Excludes1 (not coded here):
- congenital cataract (Q12.0)
Related codes in H26
Frequently asked questions
What is ICD-10 code H26.4?
H26.4 is the ICD-10-CM code for secondary cataract, in the block H25-H28 (Disorders of lens).
Is H26.4 a billable code?
No. H26.4 is a header code with more specific child codes; report one of the billable codes listed above.
What category does H26.4 belong to?
It belongs to category H26 – Other cataract.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.