H10.9 is the authoritative medical code for Unspecified conjunctivitis. This classification is used in medical billing and clinical recording to specify the clinical criteria for unspecified conjunctivitis (ICD-10-CM H10.9), ensuring healthcare documentation aligns with 2026 federal coding standards.
Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.
Official Registry Overview & Definition
Unspecified conjunctivitis is a billable ICD-10-CM diagnosis code H10.9. Excludes1 (not coded here): keratoconjunctivitis H16.2-.
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for H10.9 in the official ICD-10-CM tabular list.
Excludes1 — Not Coded Here
Conditions that can never be reported with this code; the two are mutually exclusive.
- keratoconjunctivitis H16.2-
Frequently Asked Questions (FAQ) & Clinical Guidance
What can't be coded together with H10.9?
Per official ICD-10-CM Excludes1 instructions, H10.9 must not be reported together with: keratoconjunctivitis (H16.2-).
Nearest Codes in This Family
Official ICD-10-CM classifications closest to H10.9 in its code family, with their registry titles.
- H10 — Conjunctivitis
- H10.0 — Mucopurulent conjunctivitis
- H10.01 — Acute follicular conjunctivitis
- H10.011 — Acute follicular conjunctivitis, right eye
- H10.012 — Acute follicular conjunctivitis, left eye
- H10.013 — Acute follicular conjunctivitis, bilateral
- H10.019 — Acute follicular conjunctivitis, unspecified eye
- H10.02 — Other mucopurulent conjunctivitis
- H10.021 — Other mucopurulent conjunctivitis, right eye
- H10.022 — Other mucopurulent conjunctivitis, left eye
View all 40 codes in the H10 family
Indexed Clinical Terms (2)
Clinical term phrases from the official ICD-10-CM Index to Diseases and Injuries that map to this code.
- Conjunctivitis NOS (staphylococcal) (streptococcal)
- Ophthalmia