2022 ICD-10-CM Code H00.16

Chalazion left eye, unspecified eyelid

Version 2021

Valid for Submission

ICD-10:H00.16
Short Description:Chalazion left eye, unspecified eyelid
Long Description:Chalazion left eye, unspecified eyelid

Code Classification

  • Diseases of the eye and adnexa (H00–H59)
    • Disorders of eyelid, lacrimal system and orbit (H00-H05)
      • Hordeolum and chalazion (H00)

H00.16 is a billable diagnosis code used to specify a medical diagnosis of chalazion left eye, unspecified eyelid. The code H00.16 is valid during the fiscal year 2022 from October 01, 2021 through September 30, 2022 for the submission of HIPAA-covered transactions.

The ICD-10-CM code H00.16 might also be used to specify conditions or terms like bilateral chalazion of eyelids, chalazion of left eyelid, chalazion of left eyelid, chalazion of right eyelid, cyst of left eyelid , cyst of left eyelid, etc.

Unspecified diagnosis codes like H00.16 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.

Index to Diseases and Injuries

The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for the code H00.16 are found in the index:

Approximate Synonyms

The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

Convert H00.16 to ICD-9 Code

The General Equivalency Mapping (GEM) crosswalk indicates an approximate mapping between the ICD-10 code H00.16 its ICD-9 equivalent. The approximate mapping means there is not an exact match between the ICD-10 code and the ICD-9 code and the mapped code is not a precise representation of the original code.

Information for Patients


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

Treatment of eyelid problems depends on the cause.


[Learn More in MedlinePlus]

Code History

  • 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 (First year ICD-10-CM implemented into the HIPAA code set)