ICD-10-CM 2027
ICD-10 code for Blepharoclonus
From the official ICD-10-CM alphabetic index entry “Blepharoclonus”. Page updated September 29, 2026.
About coding Blepharoclonus
The ICD-10-CM code for Blepharoclonus is H02.59 (Other disorders affecting eyelid function).
Within H02.5, choose H02.59 (Other disorders affecting eyelid function) only when documentation doesn't support a more specific option: abnormal innervation syndrome (H02.51), Blepharophimosis (H02.52) and eyelid retraction (H02.53).
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 123 (Neurological Eye Disorders, relative weight 0.822), 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.
Common questions about Blepharoclonus ICD-10 codes
What is the ICD-10 code for Blepharoclonus?
- H02.59 — Other disorders affecting eyelid function.
Is H02.59 billable?
- Yes. H02.59 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can H02.59 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict H02.59 as a principal diagnosis.
Is H02.59 a CC or MCC?
- No. H02.59 is neither a CC nor an MCC under MS-DRG v44.0.