H02.20C Unspecified lagophthalmos, bilateral, upper and lower eyelids

ICD-10-CM Diagnosis Code H02.20C: Unspecified Lagophthalmos, Bilateral

ICD-10-CM code H02.20C identifies an unspecified lagophthalmos affecting bilateral upper and lower eyelids. Lagophthalmos describes the incomplete or abnormal closure of the eyelids. This diagnostic concept is classified as a disease or syndrome and is active for the 2026 terminology version. 1 2

Plain-language overview

Lagophthalmos describes the incomplete or abnormal closure of the eyelids, and clinicians can measure the degree by checking for a space between the upper and lower eyelid margins when the patient closes their eyes. 2

What this code represents

Code H02.20C represents the diagnosis of unspecified lagophthalmos affecting both the bilateral upper and bilateral lower eyelids, and its official terminology record is currently active. 1

The semantic type assigned to the H02.20C terminology concept is Disease or Syndrome, and its parent concept in the hierarchy is H02.20 for unspecified lagophthalmos. 1

Coding details

The H02.2 code tree distinguishes unspecified lagophthalmos from cicatricial, mechanical, and paralytic variants, while also providing distinct laterality codes for right eye, left eye, and bilateral conditions. 5

Documentation considerations

Clinical documentation for lagophthalmos can include measuring the space between eyelid margins and noting associated physical signs like lower lid ectropion or upper lid retraction. 2

Coverage and utilization context

Code H02.20C appears in a Medicare billing and coding article for blepharoplasty alongside other lagophthalmos diagnoses like cicatricial lagophthalmos of the right upper eyelid. 3

What the sources add

While the National Cancer Institute terminology record establishes the official code definition and hierarchy, the clinical text provides operational context by describing the physical measurement of the eyelid gap. 1 2

The terminology record from the National Cancer Institute and the EVS Explore portal both independently list the exact preferred name and disease semantic type for code H02.20C. 1 4

Sources

1. ICD-10-CM H02.20C terminology record — National Cancer Institute Enterprise Vocabulary Services; accessed 2026-07-27.
2. Bookshelf — ncbi.nlm.nih.gov; accessed 2026-07-27.
3. Article - Billing and Coding: Blepharoplasty (A56439) — cms.gov; accessed 2026-07-27.
4. EVS Explore — evsexplore.semantics.cancer.gov; accessed 2026-07-27.
5. ICD-10-CM 2024 | H02.2 - Lagophthalmos — unboundmedicine.com; accessed 2026-07-27.