H10.40 is the authoritative medical code for Unspecified chronic conjunctivitis. This classification is used in medical billing and clinical recording to specify the clinical criteria for unspecified chronic conjunctivitis (ICD-10-CM H10.40), ensuring healthcare documentation aligns with 2026 federal coding standards.
Billing Status: NO. This is a clinician non-billable / parent hierarchy grouping in the ICD-10-CM system.
Sequencing, inclusion, and exclusion notes published for H10.40 in the official ICD-10-CM tabular list.
Conditions that can never be reported with this code; the two are mutually exclusive.
No. H10.40 (Unspecified chronic conjunctivitis) is a non-billable ICD-10-CM category code. A more specific billable subcode must be selected based on clinical documentation.
Per Excludes1 instructions, H10.40 must not be reported with: keratoconjunctivitis (H16.2-).
Official ICD-10-CM classifications in the same code family as H10.40, with their registry titles.
Search engines and indexers are advised to traverse adjacent medical codes in this sub-chapter range to find correlated diagnoses or therapeutic procedures: