H02.209 Unspecified lagophthalmos unspecified eye, unspecified eyelid

ICD-10-CM Diagnosis Code H02.209: Unspecified Lagophthalmos Unspecified Eye, Unspecified Eyelid

ICD-10-CM code H02.209 designates a diagnosis of unspecified lagophthalmos affecting an unspecified eye and unspecified eyelid. The terminology record classifies this concept as an active disease or syndrome. Lagophthalmos involves incomplete or abnormal eyelid closure, which can lead to exposure keratitis and visual impairment if left unmanaged. 1 2

Plain-language overview

Lagophthalmos is a condition characterized by the incomplete or abnormal closure of the eyelids, which can stem from various causes including cranial nerve involvement. 2

If lagophthalmos is not addressed, it can result in exposure keratitis, corneal opacification, and eventual blindness, making treatment vital to preserve vision. 2

What this code represents

The diagnosis code H02.209 represents unspecified lagophthalmos of an unspecified eye and unspecified eyelid, and it is listed within an official code tree. 1 5

This diagnostic concept is classified under the parent category H02.20 for unspecified lagophthalmos and possesses narrower descendant concepts within the terminology hierarchy. 1

Coding details

Code H02.209 exists alongside more specific bilateral and unilateral alternatives, such as H02.20C for bilateral upper and lower eyelids and H02.20A for the right eye. 5

The terminology record assigns the semantic type of Disease or Syndrome to H02.209 and provides the abbreviation unsp lagophthalmos unspecified eye, unspecified eyelid. 1 4

Documentation considerations

Clinical documentation for lagophthalmos may detail conservative early-stage management strategies like eye drops, taping, punctal plugs, eyelid stretch exercises, and physiotherapy. 2

What the sources add

While the terminology record establishes the code hierarchy and active status, clinical literature provides operational context by describing the severe visual impairment risks associated with the condition. 1 2

A phenotype mapping resource lists H02.209 alongside other unspecified, cicatricial, mechanical, and paralytic lagophthalmos variants, while a clinical code tree displays these specific diagnostic alternatives. 3 5

Sources

1. ICD-10-CM H02.209 terminology record — National Cancer Institute Enterprise Vocabulary Services; accessed 2026-07-27.
2. Techniques for the surgical correction of lagophthalmos secondary to leprosy: A systematic review — pmc.ncbi.nlm.nih.gov; accessed 2026-07-27.
3. Phecode 374.2 · Cancer PRSweb — csg.sph.umich.edu; 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.