In simple words: Blepharitis means your eyelids are inflamed, causing redness, irritation, and swelling.This code is used when the doctor doesn't specify what kind of blepharitis it is.

Unspecified blepharitis refers to inflammation of the eyelids that causes irritation, redness, and swelling.The physician does not specify whether the condition is ulcerative blepharitis (caused by bacteria or viruses) or squamous blepharitis (a dermatological condition). Blepharitis affects the base of the eyelashes, the follicles, and the meibomian glands.

Example 1: A patient presents with red, swollen eyelids, and a gritty feeling in their eyes. The physician diagnoses blepharitis but does not specify the type, so H01.00 is used., A patient with a history of seborrhea develops inflamed eyelids.The doctor diagnoses blepharitis without specifying ulcerative or squamous, therefore, H01.00 is the appropriate code., A patient experiences itchy, red, and swollen eyelids after using a new cosmetic product. The physician diagnoses blepharitis without further specifying the type, thus H01.00 is used.

Documentation should include the signs and symptoms of blepharitis, such as redness, swelling, irritation, and any associated symptoms like itching, burning, or a foreign body sensation.Although this code is for unspecified blepharitis, any clinical findings that point toward a specific type should be noted, even if a definitive diagnosis of that type is not yet made.

** This code excludes blepharoconjunctivitis (H10.5-) and several other condition groups as listed in the ICD-10-CM guidelines. H01.00 is a parent code to H01.01 - H01.03, H01.10 - H01.13, and H01.9.