H10.409
Billable codeUnspecified chronic conjunctivitis, unspecified eye
The ICD-10 code for unspecified chronic conjunctivitis, unspecified eye is H10.409.
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •Laterality-specific codes exist for this condition — confirm the affected side is documented.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- H10.401Unspecified chronic conjunctivitis, right eye
- H10.402Unspecified chronic conjunctivitis, left eye
- H10.403Unspecified chronic conjunctivitis, bilateral
- H10.409Unspecified chronic conjunctivitis, unspecified eye
ICD-9-CM equivalent
Informational only — GEM mappings are approximate, not guaranteed one-to-one equivalents. Verify before use in billing.
- 37210Approximate match
Associated MS-DRGs
H10.409 can serve as the principal diagnosis for these Medicare Severity Diagnosis-Related Groups.
Informational only — actual DRG assignment also depends on procedures, complications/comorbidities (CC/MCC), discharge status, and payer-specific rules not reflected here.