H10.509
Unspecified blepharoconjunctivitis, unspecified eye
BillableComplete code, valid to report
H10.509 (also written H10509) is a billable ICD-10-CM diagnosis code for unspecified blepharoconjunctivitis, unspecified eye. It is part of the FY2027 code set, effective October 1, 2026. It is one of the 72 codes in category H10 (Conjunctivitis). Its coding notes include 1 Excludes1 entry and 11 Excludes2 entries.
Excludes1
Not coded here. The listed conditions generally should not be reported together.
Excludes2
Not included here. Both codes may be reported if the patient has both conditions.
Also from chapter/block level (11 notes)
Inherited from Chapter 7 Diseases of the eye and adnexa
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
- diabetes mellitus related eye conditions (E09.3-, E10.3-, E11.3-, E13.3-)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury (trauma) of eye and orbit (S05.-)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
- syphilis related eye disorders (A50.01, A50.3-, A51.43, A52.71)
Notes
Also from chapter/block level (1 note)
Inherited from Chapter 7 Diseases of the eye and adnexa
- Use an external cause code following the code for the eye condition, if applicable, to identify the cause of the eye condition