ICD-10-CM 2027
ICD-10 code for blepharitis
From the official ICD-10-CM alphabetic index entry “Blepharitis (angularis) (ciliaris) (eyelid) (marginal) (nonulcerative)”. Page updated September 29, 2026.
About coding blepharitis
The ICD-10-CM code for blepharitis is H01.009 (Unspecified blepharitis unspecified eye, unspecified eyelid). The official index lists 27 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on H01.009.
Within H01.00, choose H01.009 (unspecified eye, unspecified eyelid) only when documentation doesn't support a more specific option: right upper eyelid (H01.001), right lower eyelid (H01.002), right eye, unspecified eyelid (H01.003), left upper eyelid (H01.004), left lower eyelid (H01.005), left eye, unspecified eyelid (H01.006), right eye, upper and lower eyelids (H01.00A) and left eye, upper and lower eyelids (H01.00B).
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 blepharitis codes (official index)
- herpes zoster B02.39 — Other herpes zoster eye disease
- left H01.006 — Unspecified blepharitis left eye, unspecified eyelid
- lower H01.005 — Unspecified blepharitis left lower eyelid
- upper H01.004 — Unspecified blepharitis left upper eyelid
- upper and lower H01.00B — Unspecified blepharitis left eye, upper and lower eyelids
- right H01.003 — Unspecified blepharitis right eye, unspecified eyelid
- lower H01.002 — Unspecified blepharitis right lower eyelid
- upper H01.001 — Unspecified blepharitis right upper eyelid
- upper and lower H01.00A — Unspecified blepharitis right eye, upper and lower eyelids
- squamous H01.029 — Squamous blepharitis unspecified eye, unspecified eyelid
- 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
- ulcerative H01.019 — Ulcerative blepharitis unspecified eye, unspecified eyelid
- left H01.016 — Ulcerative blepharitis left eye, unspecified eyelid
- lower H01.015 — Ulcerative blepharitis left lower eyelid
- upper H01.014 — Ulcerative blepharitis left upper eyelid
- upper and lower H01.01B — Ulcerative blepharitis left eye, upper and lower eyelids
- right H01.013 — Ulcerative blepharitis right eye, unspecified eyelid
- lower H01.012 — Ulcerative blepharitis right lower eyelid
- upper H01.011 — Ulcerative blepharitis right upper eyelid
- upper and lower H01.01A — Ulcerative blepharitis right eye, upper and lower eyelids
Common questions about blepharitis ICD-10 codes
What is the ICD-10 code for blepharitis?
- H01.009 — Unspecified blepharitis unspecified eye, unspecified eyelid. More specific codes apply when the documentation supports them: B02.39, H01.006, H01.005, H01.004 and others below.
What is the ICD-10 code for herpes zoster blepharitis?
- B02.39 — Other herpes zoster eye disease.
What is the ICD-10 code for left blepharitis?
- H01.006 — Unspecified blepharitis left eye, unspecified eyelid.
What is the ICD-10 code for right blepharitis?
- H01.003 — Unspecified blepharitis right eye, unspecified eyelid.
What is the ICD-10 code for squamous blepharitis?
- H01.029 — Squamous blepharitis unspecified eye, unspecified eyelid.
What is the ICD-10 code for ulcerative blepharitis?
- H01.019 — Ulcerative blepharitis unspecified eye, unspecified eyelid.
Is H01.009 billable?
- Yes. H01.009 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can H01.009 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict H01.009 as a principal diagnosis.
Is H01.009 a CC or MCC?
- No. H01.009 is neither a CC nor an MCC under MS-DRG v44.0.