ICD-9 Diagnosis Code 528.3

Cellulitis/abscess mouth

Diagnosis Code 528.3

ICD-9: 528.3
Short Description: Cellulitis/abscess mouth
Long Description: Cellulitis and abscess of oral soft tissues
This is the 2014 version of the ICD-9-CM diagnosis code 528.3

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.

  • Abscess of buccal space of mouth
  • Abscess of canine space of mouth
  • Abscess of masticator space of mouth
  • Abscess of oral soft tissue
  • Abscess of oral tissue
  • Abscess of palate
  • Abscess of sublingual space
  • Abscess of uvula of palate
  • Cellulitis of buccal space of mouth
  • Cellulitis of canine space of mouth
  • Cellulitis of floor of mouth
  • Cellulitis of gingiva
  • Cellulitis of masticator space of mouth
  • Cellulitis of oral soft tissues
  • Cellulitis of palate
  • Cellulitis of sublingual space
  • Dentoalveolar cellulitis
  • Ludwig's angina
  • Oral fistula
  • Oroantral fistula - established
  • Oroantral fistula - immediate
  • Orocutaneous fistula
  • Oronasal fistula
  • Phlegmonous stomatitis AND cellulitis
  • Uvulitis

Index of Diseases and Injuries
References found for the code 528.3 in the Index of Diseases and Injuries:

Information for Patients


An abscess is a pocket of pus. You can get an abscess almost anywhere in your body. When an area of your body becomes infected, your body's immune system tries to fight the infection. White blood cells go to the infected area, collect within the damaged tissue, and cause inflammation. During this process, pus forms. Pus is a mixture of living and dead white blood cells, germs, and dead tissue.

Bacteria, viruses, parasites and swallowed objects can all lead to abscesses. Skin abscesses are easy to detect. They are red, raised and painful. Abscesses inside your body may not be obvious and can damage organs, including the brain, lungs and others. Treatments include drainage and antibiotics.

  • Abscess
  • Abscess scan - radioactive
  • Amebic liver abscess
  • Anorectal abscess
  • Bartholin's abscess
  • Brain abscess
  • Epidural abscess
  • Intra-abdominal abscess
  • Pancreatic abscess
  • Perirenal abscess
  • Peritonsillar abscess
  • Pilonidal cyst resection
  • Pyogenic liver abscess
  • Retropharyngeal abscess
  • Skin abscess
  • Subareolar abscess
  • Tooth abscess



Cellulitis is an infection of the skin and deep underlying tissues. Group A strep (streptococcal) bacteria are the most common cause. The bacteria enter your body when you get an injury such as a bruise, burn, surgical cut, or wound.

Symptoms include

  • Fever and chills
  • Swollen glands or lymph nodes
  • A rash with painful, red, tender skin. The skin may blister and scab over.

Your health care provider may take a sample or culture from your skin or do a blood test to identify the bacteria causing infection. Treatment is with antibiotics. They may be oral in mild cases, or intravenous (through the vein) for more severe cases.

NIH: National Institute of Allergy and Infectious Diseases

  • Cellulitis
  • Orbital cellulitis
  • Perianal streptococcal cellulitis
  • Periorbital cellulitis


Mouth Disorders

Your mouth is one of the most important parts of your body. 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. Keeping a clean mouth by brushing and flossing often is important.

  • Burning Mouth Syndrome - NIH (National Institute of Dental and Craniofacial Research)
  • Drooling
  • Gum biopsy
  • Herpangina
  • Leukoplakia
  • Lichen planus
  • Mouth sores
  • Mouth ulcers
  • Mucous cyst
  • Oral mucositis
  • Palatal myoclonus
  • Perioral dermatitis
  • Thrush

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