2020 ICD-10-CM Diagnosis Code K02

Dental caries

    2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
  • K02 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
  • The 2020 edition of ICD-10-CM K02 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of K02 - other international versions of ICD-10 K02 may differ.
Includes
Includes Help
"Includes" further defines, or give examples of, the content of the code or category.
  • caries of dentine
  • dental cavities
  • early childhood caries
  • pre-eruptive caries
  • recurrent caries (dentino enamel junction) (enamel) (to the pulp)
  • tooth decay
The following code(s) above K02 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to K02:
  • K00-K95
    2020 ICD-10-CM Range K00-K95

    Diseases of the digestive system

    Type 2 Excludes
    • certain conditions originating in the perinatal period (P04-P96)
    • certain infectious and parasitic diseases (A00-B99)
    • complications of pregnancy, childbirth and the puerperium (O00-O9A)
    • congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
    • endocrine, nutritional and metabolic diseases (E00-E88)
    • injury, poisoning and certain other consequences of external causes (S00-T88)
    • neoplasms (C00-D49)
    • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
    Diseases of the digestive system
Clinical Information
  • A disorder characterized by the decay of a tooth, in which it becomes softened, discolored and/or porous.
  • Localized destruction of calcified tissue initiated on the tooth surface by decalcification of the enamel of the teeth, followed by enzymatic lysis of organic structures, leading to cavity formation that, if left untreated penetrates the enamel and dentin and may reach the pulp.
  • Localized destruction of the tooth surface initiated by decalcification of the enamel followed by enzymatic lysis of organic structures and leading to cavity formation. If left unchecked, the cavity may penetrate the enamel and dentin and reach the pulp. The three most prominent theories used to explain the etiology of the disease are that acids produced by bacteria lead to decalcification; that micro-organisms destroy the enamel protein; or that keratolytic micro-organisms produce chelates that lead to decalcification.
  • The decay of a tooth, in which it becomes softened, discolored, and/or porous.
  • You call it a cavity. Your dentist calls it tooth decay or dental caries. They're all names for a hole in your tooth. The cause of tooth decay is plaque, a sticky substance in your mouth made up mostly of germs. Tooth decay starts in the outer layer, called the enamel. Without a filling, the decay can get deep into the tooth and its nerves and cause a toothache or abscess. To help prevent cavities
    • brush your teeth every day with a fluoride toothpaste
    • clean between your teeth every day with floss or another type of between-the-teeth cleaner
    • snack smart - limit sugary snacks
    • see your dentist or oral health professional regularly
Code 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
Code annotations containing back-references to K02:
  • Type 2 Excludes: K03
    ICD-10-CM Diagnosis Code K03

    Other diseases of hard tissues of teeth

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Type 2 Excludes
ICD-10-CM Codes Adjacent To K02
K00.3 Mottled teeth
K00.4 Disturbances in tooth formation
K00.5 Hereditary disturbances in tooth structure, not elsewhere classified
K00.6 Disturbances in tooth eruption
K00.7 Teething syndrome
K00.8 Other disorders of tooth development
K00.9 Disorder of tooth development, unspecified
K01 Embedded and impacted teeth
K01.0 Embedded teeth
K01.1 Impacted teeth
K02 Dental caries
K02.3 Arrested dental caries
K02.5 Dental caries on pit and fissure surface
K02.51 …… limited to enamel
K02.52 …… penetrating into dentin
K02.53 …… penetrating into pulp
K02.6 Dental caries on smooth surface
K02.61 …… limited to enamel
K02.62 …… penetrating into dentin
K02.63 …… penetrating into pulp
K02.7 Dental root caries

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.