H10.422 – Simple chronic conjunctivitis, left eye
ICD-10-CM 2027 diagnosis code · Disorders of conjunctiva
ICD-10-CM code
H10.422
- Code
H10.422(claims format:H10422)- Description
- Simple chronic conjunctivitis, left eye
- 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
- H10-H11 Disorders of conjunctiva
- Parent codes
- H10 › H10.4 › H10.42
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
H10 – Conjunctivitis
Excludes1 (not coded here):
- keratoconjunctivitis (H16.2-)
Related codes in H10.42
Frequently asked questions
What is ICD-10 code H10.422?
H10.422 is the ICD-10-CM code for simple chronic conjunctivitis, left eye, in the block H10-H11 (Disorders of conjunctiva).
Is H10.422 a billable code?
Yes. H10.422 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does H10.422 belong to?
It belongs to category H10 – Conjunctivitis.
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.