ICD-10 Code
International Classification of Diseases, 10th Revision
Feb 21, 2018

See: Stomatitis and related lesions

  ICD-10 Code for Recurrent oral aphthae K12.0

K12.0 is a valid1 ICD 10 diagnosis code.

K12.0 is valid for submission for HIPAA-covered transactions.

Chapter 11 Diseases of the digestive system (K00-K95)
Section K00-K14 Diseases of oral cavity and salivary glands (K00-K14)
Category K12 Stomatitis and related lesions

• See below for any additional coding requirements that may be necessary.

• Check for any notations, inclusions and/or exclusions that are specific to this ICD 10 code before using

1 No additional coding requirements necessary.
Inclusion Term
  • Aphthous stomatitis (major) (minor)
  • Bednar's aphthae
  • Periadenitis mucosa necrotica recurrens
  • Recurrent aphthous ulcer
  • Stomatitis herpetiformis
See also ICD 10 code for

Related Terms to “Recurrent oral aphthae”

  • Aphthae, aphthousSee also condition
    • Bednar's - K12.0
    • oral(recurrent) - K12.0
    • stomatitis(major) (minor) - K12.0
    • ulcer(oral) (recurrent) - K12.0
  • Bednar's
    • aphthae - K12.0
  • Canker(mouth) (sore) - K12.0
  • Periadenitis mucosa necrotica recurrens - K12.0
  • Sore
  • Stomatitis(denture) (ulcerative) - K12.1
    • aphthous - K12.0
    • herpetiformis - K12.0
  • Ulcer, ulcerated, ulcerating, ulceration, ulcerative
    • aphthous(oral) (recurrent) - K12.0
See the ICD-10-CM Coding Guidelines.

Questions related to K12.0 Recurrent oral aphthae

When ICD 10 was implemented on October 1, 2015, it did not affect physicians', outpatient facilities', and hospital outpatient departments' use of CPT codes on Medicare Fee-For-Service claims. Providers should continue to use CPT codes to report these services.