DocScrib
How it WorksPricingBlog
Sign InSign UpBook a Demo
DocScrib

AI-powered medical documentation platform streamlining healthcare workflows through intelligent transcription and clinical note generation.

Book a Demo

Product

  • Medical Templates
  • Pricing
  • Integrations
  • Security & Compliance

Resources

  • Blog
  • Documentation
  • Case Studies

Contact

  • support@docscrib.com
  • +1 (555) 123-4567
  • 123 Healthcare Blvd
    Medical District, CA 90210
© 2025 DocScrib. All rights reserved.
Privacy PolicyTerms of ServiceCookie Policy
Home/Diagnosis/ICD-10 Coding for Mouth Sore

ICD-10 Coding for Mouth Sore

K12.0
K12.1
K12.3

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

Also Known as:
Oral Ulcer
Canker Sore
Aphthous Stomatitis
Join 10,000+ Happy Clinicians

The AI Medical Scribe for Happiest Clinicians

Save 2+ hours daily with instant clinical documentation.
Our AI scribe listens, understands, and generates comprehensive medical notes so you can focus on patient care.

Start Free Trial
No credit card required•HIPAA compliant
Recording Controls
Start recording to see live transcription
Live Conversation - Try For Free!
Real-time transcription with automatic speaker identification

Ready to Record

Start recording to see live conversation transcription

Key Information: ICD-10 Coding for Mouth Sore

Essential facts and insights about ICD-10 Coding for Mouth Sore

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

  • • Recurrent episodes of oral ulcers

Applicable To

  • • Recurrent aphthous stomatitis

Important Notes

  • • Ensure recurrence is clearly documented to avoid misclassification.

Other forms of stomatitis

Billable Code
K12.1
Billable

Diagnostic Criteria

  • • Single-episode ulcers with explicit etiology

Applicable To

  • • Allergic contact stomatitis

Important Notes

  • • Ensure the specific cause of stomatitis is documented.

Oral mucositis (ulcerative) due to antineoplastic therapy

Non-Billable
K12.3
Non-Billable

Diagnostic Criteria

  • • Documentation of chemotherapy or radiation therapy
  • • Presence of ulcerative mucositis

Applicable To

  • • Ulcerative mucositis from chemotherapy

Important Notes

  • • Ensure linkage to chemotherapy or radiation therapy is documented.
Ancillary Codes

Additional codes that may be used with this diagnosis

B99.9

Viral infection, unspecified

Use if viral cause is suspected but not confirmed.

T36-T50

Poisoning by, adverse effect of and underdosing of drugs, medicaments and biological substances

Use if drug-induced stomatitis is suspected.

Z51.11

Encounter for antineoplastic chemotherapy

Use to indicate the encounter for chemotherapy.

Frequently Asked Questions

What is the ICD-10 code for recurrent mouth sores?

The ICD-10 code for recurrent mouth sores, specifically recurrent aphthous stomatitis, is K12.0. This code is used when there are documented recurrent episodes of oral ulcers.

How do you code chemotherapy-induced mouth sores?

Chemotherapy-induced mouth sores are coded as K12.3, which indicates oral mucositis due to antineoplastic therapy. Ensure to document the chemotherapy details.

Quick Navigation
All DiagnosesICD-10 Codes

Related Resources

How Medical Coding WorksBrowse All Codes