- K13.21 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
- The 2024 edition of ICD-10-CM K13.21 became effective on October 1, 2022.
- This is the American ICD-10-CM version of K13.21 – other international versions of ICD-10 K13.21 may differ.
ICD-10-CM K13.21 is grouped within Diagnostic Related Group(s):
- 011 Tracheostomy for face, mouth and neck diagnoses or laryngectomy with mcc
- 012 Tracheostomy for face, mouth and neck diagnoses or laryngectomy with cc
- 013 Tracheostomy for face, mouth and neck diagnoses or laryngectomy without cc/mcc
- 157 Dental and oral diseases with mcc
- 158 Dental and oral diseases with cc
- 159 Dental and oral diseases without cc/mcc
Applicable To
- Leukokeratosis of oral mucosa
- Leukoplakia of gingiva, lips, tongue
Type 1 Excludes
- hairy leukoplakia (K13.3)
- leukokeratosis nicotina palati (K13.24)
Code History
- 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
- 2016 (effective 10/1/2015): No change
- 2017 (effective 10/1/2016): No change
- 2018 (effective 10/1/2017): No change
- 2019 (effective 10/1/2018): No change
- 2020 (effective 10/1/2019): No change
- 2021 (effective 10/1/2020): No change
- 2022 (effective 10/1/2021): No change
- 2024 (effective 10/1/2022): No change
Diagnosis Index entries containing back-references to K13.21:
- mouth > Leukokeratosis
- oral mucosa > Leukokeratosis
- tongue > Leukokeratosis
- buccal > Leukoplakia
- gingiva > Leukoplakia
- lip > Leukoplakia
- mouth > Leukoplakia
- oral epithelium, including tongue (mucosa) > Leukoplakia
- palate > Leukoplakia
- tongue > Leukoplakia