Chat with GenHealth to automate any coding or chart task.
ICD-10-CM H01.029: Squamous blepharitis unspecified eye, unspecified eyelid
ICD-10-CM code H01.029 identifies squamous blepharitis of an unspecified eye and unspecified eyelid. The code falls under the broader category of eyelid inflammation and is listed alongside more specific variants that designate right or left laterality and specific eyelid involvement. Blepharitis itself is an inflammatory condition of the eyelid margins treated by eye care professionals. 4 1
Plain-language overview
Blepharitis is a chronic inflammatory condition affecting the eyelid margins, and it is one of the most frequent reasons patients seek care from ophthalmologists and optometrists worldwide. 1
What this code represents
The ICD-10-CM code H01.029 corresponds to the diagnosis of squamous blepharitis of an unspecified eye and unspecified eyelid. 4
Coding details
The code H01.029 is nested within the ICD-10-CM hierarchy under H00-H05 for disorders of the eyelid, lacrimal system and orbit, the H01 category for other inflammation of eyelid, and the H01.02 subcategory for squamous blepharitis. 4
The H01.02 subcategory contains additional codes that specify laterality and eyelid location, including H01.021 for the right upper eyelid and H01.022 for the right lower eyelid. 4
Documentation considerations
The H01.02 coding structure includes distinct codes for right eye and left eye conditions, as well as separate codes for upper and lower eyelids, providing a framework for documenting anatomical specifics. 4
What the sources add
The Unbound Medicine source provides the full hierarchical code tree for H01.02, while the ExPRSweb source lists H01.029 among a broader group of blepharitis variants that includes unspecified, ulcerative, and squamous types. 4 3
The Ontoserver source includes H01.029 within a valueset that organizes multiple blepharitis codes by type, listing squamous blepharitis alongside unspecified and ulcerative categories. 5
Clinical context
Eyelid disorders encompass a variety of conditions affecting the eyelids, which protect the eyes and help keep them healthy. 2
Evidence-based therapies for blepharitis include eyelid hygiene practices, anti-inflammatory medications, and antibiotics to manage symptoms. 1
Sources
- Bookshelf — ncbi.nlm.nih.gov; accessed 2026-07-25.
- Eyelid Disorders | MedlinePlus — medlineplus.gov; accessed 2026-07-25.
- Phecode 371.3 · ExPRSweb — csg.sph.umich.edu; accessed 2026-07-25.
- H01.029 - Squamous blepharitis unspecified eye, unspecified eyelid | ICD-10-CM — unboundmedicine.com; accessed 2026-07-25.
- ValueSet '2.16.840.1.113762.1.4.1146.1612' (1) — r4.ontoserver.csiro.au; accessed 2026-07-25.
H01.029 policy automation walkthrough
Walk through the policies, prior authorization requirements, and workflow automation opportunities connected to this code.