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Home/Diagnosis/ICD-10 Coding for Oral Ulcer

ICD-10 Coding for Oral Ulcer

K12.0
K12.1
K12.30

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

Also Known as:
Mouth Ulcer
Canker Sore
Aphthous Ulcer
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Key Information: ICD-10 Coding for Oral Ulcer

Essential facts and insights about ICD-10 Coding for Oral Ulcer

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

Primary ICD-10-CM Codes

Recurrent aphthous stomatitis

Billable Code
K12.0
Billable

Diagnostic Criteria

  • • Documented history of recurrent oral ulcers

Applicable To

  • • Recurrent canker sores

Important Notes

  • • Ensure documentation specifies recurrence to avoid using unspecified codes.

Other forms of stomatitis

Billable Code
K12.1
Billable

Applicable To

  • • Ulcers from chemical or radiation exposure

Important Notes

  • • Link ulcers to specific external causes for accurate coding.

Unspecified recurrent oral aphthae

Billable Code
K12.30
Billable

Applicable To

  • • Single episode without recurrence history

Important Notes

  • • Avoid using this code if recurrence is documented.
Ancillary Codes

Additional codes that may be used with this diagnosis

B37.0

Candidal stomatitis

Use if there is a fungal coinfection.

Z77.22

Contact with and (suspected) exposure to environmental tobacco smoke (ETS)

Use when documenting radiation exposure.

L43.2

Lichen planus

Use if biopsy confirms lichen planus.

Frequently Asked Questions

What is the ICD-10 code for recurrent oral ulcers?

The ICD-10 code for recurrent oral ulcers is K12.0, which is used for recurrent aphthous stomatitis.

How do you code a single episode of an oral ulcer?

For a single episode of an oral ulcer without a history of recurrence, use ICD-10 code K12.30.

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