ICD Code K12.0

ICD code K12.0 is recurrent oral aphthae, which refers to repeated episodes of canker sores or ulcers in the mouth.

1. Presence of recurrent, well-demarcated, round or oval ulcers in the oral mucosa

2. Ulcers are painful and typically have a yellow or gray base with an erythematous halo

3. Lesions recur at intervals, often with symptom-free periods between episodes

4. Absence of systemic disease or underlying conditions that could explain the ulcers

5. No evidence of herpetic infection or other specific infectious etiology

6. Ulcers are not attributable to trauma, medication, or allergic reactions

7. Typically affects non-keratinized oral mucosal surfaces such as the buccal and labial mucosa, floor of mouth, or ventral tongue

Relevant CPT codes that may be used to treat ICD code K12.0 include:

- 40819 (Excision of lesion of mucosa and submucosa, vestibule of mouth; complicated)

- 40808 (Biopsy, vestibule of mouth)

- 41899 (Unlisted procedure, dentoalveolar structures)

- 99202–99215 (Evaluation and management services, new or established patient, office or other outpatient visit)

- 41800 (Drainage of abscess, intraoral, soft tissue)

- 70150 (Radiologic examination, mandible; partial, less than complete)

- 96372 (Therapeutic, prophylactic, or diagnostic injection; subcutaneous or intramuscular, if medication is administered)

CPT code selection should be based on the specific treatment or service provided for K12.0.

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