2025 ICD-10-CM Diagnosis Code K00.3

Mottled teeth

• K00.3 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
• The 2025 edition of ICD-10-CM K00.3 became effective on October 1, 2024.
• This is the American ICD-10-CM version of K00.3 – other international versions of ICD-10 K00.3 may differ.

Applicable To

• Dental fluorosis
• Mottling of enamel
• Nonfluoride enamel opacities

Type 2 Excludes

• deposits [accretions] on teeth (K03.6)

The following code(s) above K00.3 contain annotation back-references

 that may be applicable to K00.3:

• K00-K95  Diseases of the digestive system
• K00  Disorders of tooth development and eruption

Approximate Synonyms

• Congenital mottled teeth
• Mottled teeth, congenital

Clinical Information

• A chronic endemic form of hypoplasia of the dental enamel caused by drinking water with a high fluorine content during the time of tooth formation, and characterized by defective calcification that gives a white chalky appearance to the enamel, which gradually undergoes brown discoloration. (jablonski’s dictionary of dentistry, 1992, p286)
• A condition that results from excessive fluorine intake during tooth development. Presentation of this disorder can range from white streaks to brown stains and cracks or pits in the tooth enamel.

ICD-10-CM K00.3 is grouped within Diagnostic Related Group(s) (MS-DRG v42.0):

• 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

Convert K00.3 to ICD-9-CMCode History

• 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
• 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
• 2023 (effective 10/1/2022): No change
• 2024 (effective 10/1/2023): No change
• 2025 (effective 10/1/2024): No change

Code annotations containing back-references to K00.3:

• Type 2 Excludes: K00.4

Diagnosis Index entries containing back-references to K00.3:

• Fluorosis
  • dental K00.3
• Mottled, mottling, teeth K00.3 (enamel) (endemic) (nonendemic)
• Opacity, opacities
  • enamel K00.3 (teeth) (fluoride) (nonfluoride)