HS
Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Sy, Cornea and External Diseases Specialist in Chicago, IL?
Dr. Harold Sy, MD is a Cornea and External Diseases Specialist, who primarily practices in Chicago, IL with 2 additional practice locations. He is board certified by the American Board of Ophthalmology. Dr. Sy is fluent in English, Spanish, and Tagalog, and is currently seeing new patients. Dr. Sy’s practice accepts Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Sy’s office at (773) 282-2000.
Is Dr. Sy board certified in Cornea and External Diseases Specialist?
Yes, Dr. Harold Sy, MD is board certified by the American Board of Ophthalmology
What languages does Dr. Sy speak?
Dr. Sy and their clinical team can communicate with patients in the following languages:
English
Spanish
Tagalog
What conditions does Dr. Sy treat?
As a Cornea and External Diseases Specialist, Dr. Sy diagnoses, treats, and manages a wide range of conditions. This condition information is derived from anonymized insurance claims and highlights the medical conditions most commonly treated by Dr. Sy. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly.
Also known as:
- Cataract
- Combined Age-Related Cataract
- Secondary Cataract
- Other Secondary Cataract
- Cloudy lens
- Lens clouding
- Eye cloudiness
- Mixed Type Cataract
- Multiple Cataract Types
- After-Cataract
- Posterior Capsule Opacification
- PCO
- Cataract from another condition
- Complicated cataract
- Acquired cataract
ICD-10 Codes:
- H25813: Combined forms of age-related cataract, bilateral
- H25812: Combined forms of age-related cataract, left eye
- H25811: Combined forms of age-related cataract, right eye
- H2513: Age-related nuclear cataract, bilateral
- H26492: Other secondary cataract, left eye
- H26493: Other secondary cataract, bilateral
- H26491: Other secondary cataract, right eye
Also known as:
- Type 2 Diabetes
- Type 2 Diabetes with Diabetic Cataract
- Diabetes Type 2
- Type 2 diabetes
- Cataract
- Diabetes Mellitus Type 2
- Adult-Onset Diabetes
- Non-Insulin Dependent Diabetes
- Diabetes-related cataract
- Cloudy lens from diabetes
- Diabetic eye cataract
ICD-10 Codes:
- E119: Type 2 diabetes mellitus without complications
- E1136: Type 2 diabetes mellitus with diabetic cataract
Also known as:
- Borderline Open-Angle Glaucoma
- Primary Open-Angle Glaucoma
- Ocular Hypertension
- Glaucoma
- Early Open-Angle Glaucoma
- Open-angle glaucoma suspect
- Risk of Open-Angle Glaucoma
- Chronic Open-Angle Glaucoma
- Wide-Angle Glaucoma
- POAG
- High Eye Pressure
- Elevated Intraocular Pressure
- Eye pressure problem
ICD-10 Codes:
- H40013: Open angle with borderline findings, low risk, bilateral
- H401131: Primary open-angle glaucoma, bilateral, mild stage
- H40023: Open angle with borderline findings, high risk, bilateral
- H40053: Ocular hypertension, bilateral
Also known as:
- Strands and floaters in the eye's gel
- Eye Disease
- Eye floaters
- Vitreous opacities
- Vitreous membranes
ICD-10 Codes:
- H43393: Other vitreous opacities, bilateral
Also known as:
- Dry Eyes
- Tears
- Dry eye syndrome
- Keratoconjunctivitis sicca
- Ocular dryness
ICD-10 Codes:
- H04123: Dry eye syndrome of bilateral lacrimal glands
Also known as:
- Dry Eye Syndrome
- Corneal Disorder
- Dry Eye Disease
- Chronic Dry Eye
- Keratoconjunctivitis Sicca
ICD-10 Codes:
- H16223: Keratoconjunctivitis sicca, not specified as Sjogren's, bilateral
Also known as:
- Intraocular Lens Implant
- Cataract
- Refractive Errors
- IOL Implant
- Artificial Eye Lens
- Cataract Lens Implant
ICD-10 Codes:
- Z961: Presence of intraocular lens
Also known as:
- Long-term Oral Diabetes Medication Use
- Diabetes Medicines
- Chronic oral hypoglycemic therapy
- Taking diabetes pills long-term
- Oral antidiabetic drugs
ICD-10 Codes:
- Z7984: Long term (current) use of oral hypoglycemic drugs
Also known as:
- Blepharoconjunctivitis
- Pink Eye
- Eyelid and Eye Inflammation
- Lid-Conjunctiva Inflammation
- Blepharitis and Conjunctivitis
- Eyelid and Eye Infection
ICD-10 Codes:
- H10503: Unspecified blepharoconjunctivitis, bilateral
Also known as:
- Other Long-Term Drug Therapy
- Chronic medication use
- Ongoing drug treatment
- Extended drug therapy
ICD-10 Codes:
- Z79899: Other long term (current) drug therapy
Which procedures does Dr. Sy perform as a Cornea and External Diseases Specialist?
As a Cornea and External Diseases Specialist, procedures performed by a Dr. Harold Sy may include:
- Cataract Removal
- Corneal Specialist Consultation
- Corneal Specialist Follow Up
- Dark Adaptometry
- Diabetes Care - Eye Exam
- Electro-oculography (EOG)
- Electroretinography (ERG)
- Eye Emergency Visit
For detailed information, please contact Dr. Sy's office.
Does Dr. Sy accept my insurance?
Dr. Sy accepts most major insurance plans. Important: Please call our office at (773) 282-2000 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Sy accept in Chicago, IL?
Dr. Sy in Chicago, IL accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
Advocate Health Care
All Other Third Party
Centene
CVS Health (formerly Aetna)
Express Scripts
Health Care Service Corporation (HCSC)
Humana
Medicare
State of Illinois
UnitedHealthcare
View All Insurances
Where is Dr. Sy's office located?
What is Dr. Sy's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Sy's National Provider Identifier (NPI) number is 1992730030.
What common questions do patients ask about Dr. Sy?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Sy
What is Dr. Harold Sy's specialty?
Dr. Sy is a Cornea and External Diseases Specialist near Chicago, IL. An ophthalmologist specializing in diseases of the cornea, sclera, eyelids, conjunctiva, and anterior segment of the eye diagnoses and treats conditions affecting these structures. This specialist manages disorders such as corneal infections, eyelid malposition's, and conjunctival diseases using both medical and surgical methods. Contact Dr. Sy to book an appointment today.
Is this Dr. Harold Sy affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Sy is affiliated with Advocate Illinois Masonic Medical Center which is a Castle Connolly Top Hospital. Castle Connolly Top Hospitals are healthcare institutions recognized for their excellence in specific medical procedures and overall patient care. They are identified through a rigorous peer nomination process, evaluating factors like patient outcomes, quality of care, and expertise. The list recognizes hospitals that excel in 20 or more specific medical procedures, representing the top 25% nationwide. Castle Connolly Top Hospitals
Where can I learn more about Cornea and External Diseases Specialist?
Explore Cornea and External Diseases Specialist with insights from trusted medical experts on EverydayHealth.com, where you'll find the most relevant content and helpful condition guides for up-to date information about symptoms, causes, diagnosis, treatment and more. See all our health guides to find trusted information on medical conditions from our experts at Everyday Health.
Is Harold Sy accepting new patients in Chicago, IL?
Yes, Dr. Harold Sy is accepting new patients at this time.
Does Dr. Harold Sy offer online booking?
Please contact Dr. Sy's office at (773) 282-2000 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Harold Sy?
Please contact Dr. Sy's office at (773) 282-2000 for information regarding telehealth appointment availability or for scheduling assistance.
Which board certifications does Dr. Harold Sy have?
Dr. Harold Sy is certified by the American Board of Ophthalmology.
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