ICD-10 Code H01.009 – Unspecified blepharitis unspecified eye, unspecified eyelid (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H01.009 – Unspecified blepharitis unspecified eye, unspecified eyelid
What it is
Use this code for blepharitis when the chart does not specify which eye or eyelid is affected. It indicates inflammation of the eyelid margin, but the documentation is nonspecific.
Clinical signs
Typical findings include eyelid redness, irritation, crusting, itching, or a burning sensation. Clinical features vary; refer to documentation if the record does not clearly support blepharitis.
When to use this code
Assign H01.009 when the provider documents blepharitis without laterality or eyelid detail. Use it for nonspecific or incomplete notes where the condition is clearly stated but the site is not. If the record identifies a specific eye or eyelid, code that detail instead.
Do not use for
Do not use this code when the documentation specifies the eye, eyelid, or a different eyelid disorder. Check documentation if the note describes conjunctivitis, hordeolum, or another diagnosis instead of blepharitis.
Coding tip
Choose the unspecified code only when laterality and eyelid detail are truly absent from the record.