Valid for Submission
K12.33 is a billable diagnosis code used to specify a medical diagnosis of oral mucositis (ulcerative) due to radiation. The code K12.33 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 K12.33 might also be used to specify conditions or terms like mucositis following radiation therapy or radiation-induced mucositis of oral mucous membranes.
Tabular List of Diseases and Injuries
The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more. The following references are applicable to the code K12.33:
Use Additional CodeUse Additional Code
The “use additional code” indicates that a secondary code could be used to further specify the patient’s condition. This note is not mandatory and is only used if enough information is available to assign an additional code.
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 K12.33 are found in the index:
The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:
- Mucositis following radiation therapy
- Radiation-induced mucositis of oral mucous membranes
Convert K12.33 to ICD-9 Code
The General Equivalency Mapping (GEM) crosswalk indicates an approximate mapping between the ICD-10 code K12.33 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
Your mouth is one of the most important parts of your body. It has many different functions. It allows you to
- Take in food and drink
- Breathe in air
- Start digestion, with your teeth chewing the food you eat and your salivary glands releasing saliva to help break down the food
- Speak and sing
- Show emotion, by smiling or pouting
Any problem that affects your mouth can make it hard to eat, drink, or even smile. Some common mouth problems include
- Cold sores - painful sores on the lips and around the mouth, caused by a virus
- Canker sores - painful sores in the mouth, caused by bacteria or viruses
- Thrush - a yeast infection that causes white patches in your mouth
- Leukoplakia - white patches of excess cell growth on the cheeks, gums or tongue, common in smokers
- Dry mouth - a lack of enough saliva, caused by some medicines and certain diseases
- Gum or tooth problems
- Bad breath
Treatment for mouth disorders varies, depending on the problem. If a mouth problem is caused by some other disease, treating that disease can help. It is also important to keep your mouth clean and healthy by brushing, flossing, and not using tobacco.
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Radiation therapy is a cancer treatment. It uses high doses of radiation to kill cancer cells and stop them from spreading. About half of all cancer patients receive it. The radiation may be external, from special machines, or internal, from radioactive substances that a doctor places inside your body. The type of radiation therapy you receive depends on many factors, including
- The type of cancer
- The size of the cancer
- The cancer's location in the body
- How close the cancer is to normal tissues that are sensitive to radiation
- How far into the body the radiation needs to travel
- Your general health and medical history
- Whether you will have other types of cancer treatment
- Other factors, such as your age and other medical conditions
Radiation therapy can damage normal cells as well as cancer cells. Treatment must be carefully planned to minimize side effects. Common side effects include skin changes and fatigue. Other side effects depend on the part of your body being treated.
Sometimes radiation is used with other treatments, like surgery or chemotherapy.
NIH: National Cancer Institute
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