2026 ICD-10-CM Diagnosis Code H44.639Retained (old) magnetic foreign body in lens, unspecified eye

ICD-10-CM Codes›H00–H59›H43-H44›H44

ICD-10-CM H44.639
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

H44.639 is a billable ICD-10-CM diagnosis code for retained (old) magnetic foreign body in lens, unspecified eye. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 124 through 125. Coders also document this condition as foreign body in lens. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified eye disorders.

Code Identity

ICD-10-CM Code
H44.639
Billable Status
Yes — Valid for Submission
Code Describes
Retained (old) magnetic foreign body in lens, unspecified eye
Short Description
Retained (old) magnetic foreign body in lens, unsp eye
Parent Code
H44.63
Retained (old) magnetic foreign body in lens

Code Classification

ChapterH00–H59Diseases of the eye and adnexa
SectionH43-H44Disorders of vitreous body and globe
CategoryH44Disorders of globe
This CodeH44.639Retained (old) magnetic foreign body in lens, unspecified eye

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Foreign body in lens
  • Retained magnetic foreign body in lens

Clinical ClassificationClinical

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

CCSR EYE012
Other specified eye disorders
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Eye Injuries

The structure of your face helps protect your eyes from injury. Still, injuries can damage your eye, sometimes severely enough that you could lose your vision. Most eye injuries are preventable. If you play sports or work in certain jobs, you may need protection.

Read the full article at MedlinePlus

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

Convert H44.639 to ICD-9-CMHistory

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

ICD-9-CM
360.53 Old magnet fb, lens
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 H44.639Overview

Is H44.639 (Retained (old) magnetic foreign body in lens) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report retained (old) magnetic foreign body in lens, unspecified eye on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does H44.639 group to?

When retained (old) magnetic foreign body in lens, unspecified eye is the principal diagnosis on an inpatient stay, it groups to MS-DRG 124, 125, with relative weights from 0.7678 to 1.3231 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of H44.639?

Under the General Equivalence Mappings, retained (old) magnetic foreign body in lens, unspecified eye converts to ICD-9-CM 360.53 (old magnet fb, lens). The mapping is approximate, so confirm the match fits the documentation.

Footnotes

[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.