2025 ICD-10-CM Diagnosis Code H01.009
Unspecified blepharitis unspecified eye, unspecified eyelid
- ICD-10-CM Code:
- H01.009
- ICD-10 Code for:
- Unspecified blepharitis unspecified eye, unspecified eyelid
- Is Billable?
- Yes - Valid for Submission
- Chronic Condition Indicator: [1]
- Not chronic
- Code Navigator:
H01.009 is a billable diagnosis code used to specify a medical diagnosis of unspecified blepharitis unspecified eye, unspecified eyelid. The code is valid during the current fiscal year for the submission of HIPAA-covered transactions from October 01, 2024 through September 30, 2025.
Unspecified diagnosis codes like H01.009 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 list of clinical terms are approximate synonyms, alternative descriptions, or common phrases that might be used by patients, healthcare providers, or medical coders to describe the same condition. These synonyms and related diagnosis terms are often used when searching for an ICD-10 code, especially when the exact medical terminology is unclear. Whether you're looking for lay terms, similar diagnosis names, or common language alternatives, this list can help guide you to the correct ICD-10 classification.
- Acute blepharitis
- Angular blepharitis
- Anterior blepharitis of lower eyelid
- Anterior blepharitis of lower eyelid
- Anterior blepharitis of upper eyelid
- Anterior blepharitis of upper eyelid
- Blepharitis
- Blepharitis of lower eyelid caused by Staphylococcus
- Blepharitis of upper eyelid caused by Staphylococcus
- Chronic blepharitis
- Demodectic blepharitis
- Infective blepharitis
- Infestation by Demodex
- Infestation by Demodex folliculorum
- Inflammation of anterior lid margin
- Ocular rosacea
- Parasitic infestation of eyelid caused by Demodex
- Posterior lid margin disease
- Rosacea blepharitis
- Seborrhea faciei
- Seborrhea faciei
- Seborrhea faciei
- Seborrheic blepharitis
- Seborrheic blepharitis
- Seborrheic blepharitis
- Seborrheic blepharitis of upper eyelid
- Seborrheic inflammation of anterior margin of lower eyelid
- Staphylococcal blepharitis
- Staphylococcal blepharitis
- Staphylococcal blepharitis
Clinical Classification
Clinical Classifications group individual ICD-10-CM diagnosis codes into broader, clinically meaningful categories. These categories help simplify complex data by organizing related conditions under common clinical themes.
They are especially useful for data analysis, reporting, and clinical decision-making. Even when diagnosis codes differ, similar conditions can be grouped together based on their clinical relevance. Each category is assigned a unique CCSR code that represents a specific clinical concept, often tied to a body system or medical specialty.
Cornea and external disease
CCSR Code: EYE001
Inpatient Default: Y - Yes, default inpatient assignment for principal diagnosis or first-listed diagnosis.
Outpatient Default: Y - Yes, default outpatient assignment for principal diagnosis or first-listed diagnosis.
Clinical Information
Blepharitis
inflammation of the eyelids.Blepharitis
inflammation of the eyelids near the eyelashes.
Index to Diseases and Injuries References
The following annotation back-references for this diagnosis code are found in the injuries and diseases index. The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10-CM code(s).
Convert H01.009 to ICD-9-CM
Below are the ICD-9 codes that most closely match this ICD-10 code, based on the General Equivalence Mappings (GEMs). This ICD-10 to ICD-9 crosswalk tool is helpful for coders who need to reference legacy diagnosis codes for audits, historical claims, or approximate code comparisons.
Blepharitis NOS
ICD-9-CM: 373.00
Approximate Flag - The approximate mapping means this ICD-10 code does not have an exact ICD-9 equivalent. The matched code is the closest available option, but it may not fully capture the original diagnosis or clinical intent.
Patient Education
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.
Like most other parts of your body, your eyelids can get infected, inflamed, or even develop cancer. There are also specific eyelid problems, including:
- Eyelids that turn in or out
- Eyelids that droop
- Abnormal blinking or twitching
Treatment of eyelid problems depends on the cause.
[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 - No Change, effective from 10/1/2020 through 9/30/2021
- FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
- FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
- FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
- FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
- FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016. This was the first year ICD-10-CM was implemented into the HIPAA code set.
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.
