ICD-10-CM 2027
ICD-10 code for squamous blepharitis
From the official ICD-10-CM alphabetic index entry “Blepharitis (angularis) (ciliaris) (eyelid) (marginal) (nonulcerative) › squamous”. Page updated September 29, 2026.
About coding squamous blepharitis
The ICD-10-CM code for squamous blepharitis is H01.029 (Squamous blepharitis unspecified eye, unspecified eyelid). The official index lists 8 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on H01.029.
Within H01.02, choose H01.029 (unspecified eye, unspecified eyelid) only when documentation doesn't support a more specific option: right upper eyelid (H01.021), right lower eyelid (H01.022), right eye, unspecified eyelid (H01.023), left upper eyelid (H01.024), left lower eyelid (H01.025), left eye, unspecified eyelid (H01.026), right eye, upper and lower eyelids (H01.02A) and left eye, upper and lower eyelids (H01.02B).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 124 (Other Disorders of the Eye with MCC or Thrombolytic Agent, relative weight 1.2471) and DRG 125 (Other Disorders of the Eye without MCC, relative weight 0.7702), in MDC 02 (Diseases and Disorders of the Eye), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
More specific squamous blepharitis codes (official index)
- left H01.026 — Squamous blepharitis left eye, unspecified eyelid
- lower H01.025 — Squamous blepharitis left lower eyelid
- upper H01.024 — Squamous blepharitis left upper eyelid
- upper and lower H01.02B — Squamous blepharitis left eye, upper and lower eyelids
- right H01.023 — Squamous blepharitis right eye, unspecified eyelid
- lower H01.022 — Squamous blepharitis right lower eyelid
- upper H01.021 — Squamous blepharitis right upper eyelid
- upper and lower H01.02A — Squamous blepharitis right eye, upper and lower eyelids
Common questions about squamous blepharitis ICD-10 codes
What is the ICD-10 code for squamous blepharitis?
- H01.029 — Squamous blepharitis unspecified eye, unspecified eyelid. More specific codes apply when the documentation supports them: H01.026, H01.025, H01.024, H01.02B and others below.
What is the ICD-10 code for left squamous blepharitis?
- H01.026 — Squamous blepharitis left eye, unspecified eyelid.
What is the ICD-10 code for right squamous blepharitis?
- H01.023 — Squamous blepharitis right eye, unspecified eyelid.
Is H01.029 billable?
- Yes. H01.029 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can H01.029 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict H01.029 as a principal diagnosis.
Is H01.029 a CC or MCC?
- No. H01.029 is neither a CC nor an MCC under MS-DRG v44.0.