2024 ICD-10-CM Diagnosis Code H18.599
Other hereditary corneal dystrophies, unspecified eye
- ICD-10-CM Code:
- H18.599
- ICD-10 Code for:
- Other hereditary corneal dystrophies, unspecified eye
- Is Billable?
- Yes - Valid for Submission
- Chronic Condition Indicator: [1]
- Not chronic
- Code Navigator:
H18.599 is a billable diagnosis code used to specify a medical diagnosis of other hereditary corneal dystrophies, unspecified 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.
Unspecified diagnosis codes like H18.599 are acceptable when clinical information is unknown or not available about a particular condition. Although a more specific code is preferable, unspecified codes should be used when such codes most accurately reflect what is known about a patient's condition. Specific diagnosis codes should not be used if not supported by the patient's medical record.
Approximate Synonyms
The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:
- Bowman's membrane finding
- Bowman's membrane finding
- Bowman's membrane finding
- Central cloudy dystrophy of Francois
- Combined corneal dystrophy
- Congenital corneal dystrophy
- Congenital osteodystrophy
- Congenital stromal corneal dystrophy
- Crocodile shagreen of cornea
- Crystalline corneal dystrophy
- Fleck corneal dystrophy
- Francois syndrome
- Gelatinous droplike corneal dystrophy
- Grayson Wilbrandt corneal dystrophy
- Polymorphous corneal dystrophy
- Posterior amorphous corneal dystrophy
- Posterior crocodile shagreen of cornea
- Pre-descemet's corneal dystrophy
- Reis-Bucklers' corneal dystrophy
- Ring-like corneal dystrophy
- Schnyder crystalline cornea dystrophy
- Stromal corneal dystrophy
- Subepithelial mucinous corneal dystrophy
- Thiel-Behnke corneal dystrophy
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.
Replacement Code
H18599 replaces the following previously assigned ICD-10-CM code(s):
- H18.59 - Other hereditary corneal dystrophies
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.