ICD-10-CM 2027 diagnosis code

H01.0Blepharitis

Not billable — use a more specific code

H01.0 is a header code, so it can't be reported by itself. Choose one of the 3 more specific codes beneath it.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About H01.0

H01.0 is the ICD-10-CM diagnosis code for blepharitis. It belongs to category H01 (other inflammation of eyelid), block H00-H05 (disorders of eyelid, lacrimal system and orbit) and chapter 7 (diseases of the eye and adnexa). It is a header code, so it can't be reported by itself; one of its 3 subcodes must be used instead.

Within H01 (other inflammation of eyelid), H01.0 is specifically for blepharitis. Related codes cover noninfectious dermatoses of eyelid (H01.1), other specified inflammations of eyelid (H01.8) and unspecified inflammation of eyelid (H01.9).

To report this condition, pick the subcode that matches the documentation: H01.00 (blepharitis), H01.01 (blepharitis) and H01.02 (blepharitis).

Don't report H01.0 together with the conditions in its Excludes1 note: blepharoconjunctivitis (H10.5-).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Specific codes under H01.0

Coding notes

Excludes1Not coded here — never report together with this code

blepharoconjunctivitis (H10.5-)

Notes that apply from higher levels

Instructions written at a parent level also apply to H01.0.

Broader instructions also apply from H00-H05 Disorders of eyelid, lacrimal system and orbit and Chapter 7: Diseases of the eye and adnexa.

Code history

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2027

FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
No changes since FY2016.

Common questions about H01.0

Is H01.0 billable?: No. H01.0 is a header code. Report one of its more specific subcodes instead.