Is H40.42 a billable code?
No. H40.42 is a header code that groups 0 more specific codes. Use one of the billable codes listed on this page instead.
ICD-10-CM FY2027 diagnosis code
H40.42: Glaucoma secondary to eye inflammation, left eye
Header code: not billableValid for dates of service October 1, 2026 to September 30, 2027
H40.42 groups related diagnoses under glaucoma secondary to eye inflammation, left eye. It cannot be used on a claim by itself. Choose the billable code below that matches the patient's record.
Other codes in H40.4 Glaucoma secondary to eye inflammation
H40.42 questions
What does H40.42 mean?
H40.42 is the ICD-10-CM code for Glaucoma secondary to eye inflammation, left eye. It is in chapter 7, Diseases of the eye and adnexa (H00-H59).
Code titles come from the official ICD-10-CM files published by the CDC National Center for Health Statistics. Always check payer rules and the clinical record before billing.