H16.2
Keratoconjunctivitis
Not billable — category only FY2026 2025-10-01 → 2026-09-30
Exclusions 11 never code together
H00-H59chapter
Excludes2
- certain conditions originating in the perinatal period (P04-P96)P04-P96
- certain infectious and parasitic diseases (A00-B99)A00-B99
- complications of pregnancy, childbirth and the puerperium (O00-O9A)O00-O9A
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)Q00-Q99
- diabetes mellitus related eye conditions (E09.3-, E10.3-, E11.3-, E13.3-)E09.3-E10.3-E11.3-E13.3-
- endocrine, nutritional and metabolic diseases (E00-E88)E00-E88
- injury (trauma) of eye and orbit (S05.-)S05.-
- injury, poisoning and certain other consequences of external causes (S00-T88)S00-T88
- neoplasms (C00-D49)C00-D49
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)R00-R94
- syphilis related eye disorders (A50.01, A50.3-, A51.43, A52.71)A50.01A50.3-A51.43A52.71
Excludes2 — not included here, but the patient may have both. Code both when documented.
Instructional notes 1
H00-H59chapter
Notes
- Use an external cause code following the code for the eye condition, if applicable, to identify the cause of the eye condition
Index entries leading here filed at null
No alphabetic index entry points at this code.
Alongside this code 6 same parent — H16
Subordinate codes 8
H16.20 Unspecified keratoconjunctivitis H16.21 Exposure keratoconjunctivitis H16.22 Keratoconjunctivitis sicca, not specified as Sjogren's H16.23 Neurotrophic keratoconjunctivitis H16.24 Ophthalmia nodosa H16.25 Phlyctenular keratoconjunctivitis H16.26 Vernal keratoconjunct, w limbar and corneal involvement H16.29 Other keratoconjunctivitis
Medications 3
6 Keratoconjunctivitis drugs 3 Keratoconjunctivitis, Infectious drugs 1 Keratoconjunctivitis Sicca drugs
MED-RT files conditions by MeSH, which carves the world differently from ICD-10. These are name matches on this code's description, offered as candidates — not as an assertion that they are this code.
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.