Unspecified blepharitis left lower eyelid

This code signifies an inflammation of the left lower eyelid margin, characterized by redness, swelling, and irritation, without further specification of the type of blepharitis. It indicates a general diagnosis of blepharitis affecting only the lower portion of the left eye.

Apply this code when documentation clearly states "blepharitis of the left lower eyelid" but lacks details regarding the specific etiology (e.g., ulcerative, seborrheic, or parasitic). This code is appropriate when the provider has not specified the type of blepharitis, or when the clinical picture does not fit a more specific blepharitis diagnosis.

• Avoid using this code if the documentation specifies the type of blepharitis (e.g., ulcerative, seborrheic); instead, use the more specific code.
• Ensure the laterality (left) and eyelid portion (lower) are explicitly documented to support this code.
• If the blepharitis affects both upper and lower eyelids, or is unspecified as to upper/lower, consider codes like H01.002 (unspecified blepharitis left upper eyelid) or H01.009 (unspecified blepharitis unspecified eyelid, unspecified eye).