2024 ICD-10-CM Diagnosis Code H18.512
Endothelial corneal dystrophy, left eye
- ICD-10-CM Code:
- H18.512
- ICD-10 Code for:
- Endothelial corneal dystrophy, left eye
- Is Billable?
- Yes - Valid for Submission
- Chronic Condition Indicator: [1]
- Not chronic
- Code Navigator:
H18.512 is a billable diagnosis code used to specify a medical diagnosis of endothelial corneal dystrophy, left eye. The code is valid during the current fiscal year for the submission of HIPAA-covered transactions from October 01, 2023 through September 30, 2024.
Approximate Synonyms
The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:
- Chandler syndrome
- Iridocorneal endothelial syndrome
- Iridocorneal endothelial syndrome of left eye
Clinical Classification
Clinical Category is Cornea and external disease
- CCSR Category Code: EYE001
- Inpatient Default CCSR: Y - Yes, default inpatient assignment for principal diagnosis or first-listed diagnosis.
- Outpatient Default CCSR: Y - Yes, default outpatient assignment for principal diagnosis or first-listed diagnosis.
Clinical Information
Iridocorneal Endothelial Syndrome
a grouping of three closely linked conditions: iris nevus (or cogan-reese) syndrome, chandler syndrome, and essential (progressive) iris atrophy. the most common features of this syndrome are the movement of endothelial cells off the cornea onto the iris leading to corneal swelling, distortion of the iris, and variable degrees of distortion of the pupil. the abnormal cell movement plugs fluid outflow channels of the eye causing glaucoma.Glaucoma
an ocular disease, occurring in many forms, having as its primary characteristics an unstable or a sustained increase in the intraocular pressure which the eye cannot withstand without damage to its structure or impairment of its function. the consequences of the increased pressure may be manifested in a variety of symptoms, depending upon type and severity, such as excavation of the optic disk, hardness of the eyeball, corneal anesthesia, reduced visual acuity, seeing of colored halos around lights, disturbed dark adaptation, visual field defects, and headaches. (dictionary of visual science, 4th ed)Iridocorneal Endothelial Syndrome
a group of disorders characterized by the presence of an abnormal inner layer of the cornea. this abnormality results in iris distortion, corneal swelling, pupil distortion, and glaucoma. it usually affects only one eye.
Replacement Code
H18512 replaces the following previously assigned ICD-10-CM code(s):
- H18.51 - Endothelial corneal dystrophy
Patient Education
Corneal Disorders
Your cornea is the outermost layer of your eye. It is clear and shaped like a dome. The cornea helps to shield the rest of the eye from germs, dust, and other harmful matter. It also helps your eye to focus. If you wear contact lenses, they float on top of your corneas.
Problems with the cornea include:
- Refractive errors
- Allergies
- Infections
- Injuries
- Dystrophies - conditions in which parts of the cornea lose clarity due to a buildup of cloudy material
Treatments of corneal disorders include medicines, corneal transplantation, and corneal laser surgery.
NIH: National Eye Institute
[Learn More in MedlinePlus]
Code History
- FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
- FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
- FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
- FY 2021 - Code Added, effective from 10/1/2020 through 9/30/2021
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.