2026 ICD-10-CM Diagnosis Code H02.402Unspecified ptosis of left eyelid

ICD-10-CM Codes›H00–H59›H00-H05›H02

ICD-10-CM H02.402
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

H02.402 is a billable ICD-10-CM diagnosis code for unspecified ptosis of left eyelid. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 123. Coders also document this condition as acquired ptosis of left eyelid. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Oculofacial plastics and orbital conditions.

Code Identity

ICD-10-CM Code
H02.402
Billable Status
Yes — Valid for Submission
Code Describes
Unspecified ptosis of left eyelid
Short Description
Unspecified ptosis of left eyelid
Same as the full description in the CMS dataset.
Parent Code
H02.40
Unspecified ptosis of eyelid

Code Classification

ChapterH00–H59Diseases of the eye and adnexa
SectionH00-H05Disorders of eyelid, lacrimal system and orbit
CategoryH02Other disorders of eyelid
This CodeH02.402Unspecified ptosis of left eyelid

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Acquired ptosis of left eyelid
  • Postoperative ptosis of eyelid
  • Ptosis of eyebrow
  • Ptosis of left eyebrow
  • Ptosis of left eyelid following surgery
  • Ptosis of left upper eyelid

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR EYE008
Oculofacial plastics and orbital conditions
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Eyelid Disorders

Your eyelids help protect your eyes. When you blink, your eyelids spread moisture over your eyes. Blinking also helps move dirt or other particles off the surface of the eye. You close your eyelids when you see something coming toward your eyes. This can help protect against injuries.

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert H02.402 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
374.30 Ptosis of eyelid NOS
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About H02.402Overview

What is the ICD-10 code for unspecified ptosis of left eyelid?

The ICD-10-CM code for unspecified ptosis of left eyelid is H02.402 (sometimes written as H02402). It is billable on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

Is H02.402 (Unspecified ptosis of eyelid) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report unspecified ptosis of left eyelid on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does H02.402 group to?

When unspecified ptosis of left eyelid is the principal diagnosis on an inpatient stay, it groups to MS-DRG 123 (neurological Eye Disorders), which carries a relative weight of 0.7986. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of H02.402?

Under the General Equivalence Mappings, unspecified ptosis of left eyelid converts to ICD-9-CM 374.30 (ptosis of eyelid NOS). The mapping is approximate, so confirm the match fits the documentation.