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Home/Diagnosis/ICD-10 Coding for Aphthous Stomatitis

ICD-10 Coding for Aphthous Stomatitis

K12.0
K12.1

Complete ICD-10-CM coding and documentation guide for icd-10 coding for aphthous stomatitis includes clinical validation requirements, medical necessity guidelines, and coding policies.

Also Known as:
Canker Sores
Recurrent Oral Aphthae
Aphthous Ulcers
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Key Information: ICD-10 Coding for Aphthous Stomatitis

Essential facts and insights about ICD-10 Coding for Aphthous Stomatitis

Use ICD-10 code K12.0 for recurrent oral aphthae, ensuring proper documentation in clinical notes.

Primary ICD-10-CM Codes

Recurrent oral aphthae

Billable Code
K12.0
Billable

Diagnostic Criteria

clinical:
  • • Recurrent painful ulcers on non-keratinized mucosa
coding:
  • • Negative HSV PCR to exclude herpetic etiology

Applicable To

  • • Aphthous stomatitis major
  • • Aphthous stomatitis minor
  • • Bednar's aphthae

Important Notes

  • • Ensure documentation specifies recurrence and rules out viral causes.

Other forms of stomatitis

Billable Code
K12.1
Billable

Important Notes

  • • Ensure differentiation from recurrent aphthous stomatitis.
Ancillary Codes

Additional codes that may be used with this diagnosis

Z77.29

Contact with and (suspected) exposure to other hazardous substances

Use when nutritional deficiencies like iron or B12 are documented.

F52.8

Other sexual dysfunction not due to a substance or known physiological condition

Use when stress-related factors are documented.

Frequently Asked Questions

What is the ICD-10 code for aphthous stomatitis?

The ICD-10 code for recurrent aphthous stomatitis is K12.0. It is used for cases with recurrent painful ulcers on non-keratinized mucosa, excluding viral causes.

How is aphthous stomatitis documented?

Document aphthous stomatitis by specifying ulcer size, location, recurrence frequency, and excluding viral causes with tests like HSV PCR.

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