H26.40 – Unspecified secondary cataract
ICD-10-CM 2027 diagnosis code · Disorders of lens
ICD-10-CM code
H26.40
- Code
H26.40(claims format:H2640)- Description
- Unspecified secondary cataract
- Billable
- Yes – valid for HIPAA-covered transactions
- 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 › H26.4
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)
Index terms for H26.40
Entries in the ICD-10-CM alphabetic index that lead to this code:
Related codes in H26.4
Frequently asked questions
What is ICD-10 code H26.40?
H26.40 is the ICD-10-CM code for unspecified secondary cataract, in the block H25-H28 (Disorders of lens).
Is H26.40 a billable code?
Yes. H26.40 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does H26.40 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.