ICD-9 Diagnosis Code 528.2

Oral aphthae

Diagnosis Code 528.2

ICD-9: 528.2
Short Description: Oral aphthae
Long Description: Oral aphthae
This is the 2014 version of the ICD-9-CM diagnosis code 528.2

Code Classification
  • Diseases of the digestive system (520–579)
    • Diseases of oral cavity, salivary glands, and jaws (520-529)
      • 528 Diseases of the oral soft tissues, excluding lesions specific for gingiva and tongue

Information for Medical Professionals

Convert to ICD-10 Additional informationCallout TooltipGeneral Equivalence Map
The ICD-10 and ICD-9 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.
  • K12.0 - Recurrent oral aphthae

Index of Diseases and Injuries
References found for the code 528.2 in the Index of Diseases and Injuries:

Information for Patients

Canker Sores

Also called: Aphthous ulcers

Canker sores are small, round sores on the inside of the cheek, under the tongue, or in the back of the throat. They usually have a red edge and a gray center. They can be quite painful. They are not the same as cold sores, which are caused by herpes simplex.

Canker sores aren't contagious. They may happen if you have a viral infection. They may also be triggered by stress, food allergies, lack of vitamins and minerals, hormonal changes or menstrual periods. In some cases the cause is unknown.

In most cases, the sores go away by themselves. Some ointments, creams or rinses may help with the pain. Avoiding hot, spicy food while you have a canker sore also helps.

  • Canker sore

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