2024 ICD-10-CM Diagnosis Code K00.2

Abnormalities of size and form of teeth

ICD-10-CM Code:
K00.2
ICD-10 Code for:
Abnormalities of size and form of teeth
Is Billable?
Yes - Valid for Submission
Chronic Condition Indicator: [1]
Not chronic
Code Navigator:

Code Classification

  • Diseases of the digestive system
    (K00–K95)
    • Diseases of oral cavity and salivary glands
      (K00-K14)
      • Disorders of tooth development and eruption
        (K00)

K00.2 is a billable diagnosis code used to specify a medical diagnosis of abnormalities of size and form of teeth. The code is valid during the current fiscal year for the submission of HIPAA-covered transactions from October 01, 2023 through September 30, 2024.

Approximate Synonyms

The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

  • Abnormal crown of tooth
  • Abnormal form of root of tooth
  • Abnormal form of tooth
  • Abnormal size of tooth
  • Abnormally formed tooth
  • Amelogenesis imperfecta, hypomaturation hypoplasia type with taurodontism
  • Amelogenesis imperfecta, hypomaturation type
  • Amelogenesis imperfecta, hypoplastic type
  • Amelogenesis imperfecta, hypoplastic type
  • Amelogenesis imperfecta, hypoplastic type with microdontia
  • Complete deafness
  • Concrescence of teeth
  • Congenital anomaly in number of teeth
  • Congenital deafness
  • Congenital deafness with labyrinthine aplasia, microtia and microdontia
  • Conical form of root of tooth
  • Curved form of root of tooth
  • Deletion of part of chromosome 11
  • Dens evaginatus
  • Dens in dente
  • Developmental abnormality of cusp of tooth
  • Developmental abnormality of cusp of tooth
  • Developmental abnormality of cusp of tooth
  • Developmental abnormality of cusp of tooth
  • Developmental anomaly of root of tooth
  • Developmental anomaly of root of tooth
  • Developmental anomaly of root of tooth
  • Developmental anomaly of root of tooth
  • Dilated odontoma
  • Enamel pearls
  • Exaggerated cingulum of tooth
  • Exaggerated cusp of tooth
  • Form of root of tooth
  • Form of root of tooth
  • Form of root of tooth
  • Form of root of tooth
  • Form of tooth
  • Form of tooth
  • Form of tooth
  • Form of tooth
  • Form of tooth
  • Fusion of crown of teeth
  • Fusion of mandibular incisor teeth
  • Fusion of teeth
  • Gemination of teeth
  • Gemination of tooth
  • Generalized macrodontia
  • Globodontia
  • Globodontia
  • Globodontia
  • High frequency sensorineural hearing loss in left ear
  • High frequency sensorineural hearing loss in right ear
  • High frequency sensorineural hearing loss of bilateral ears
  • Hypertaurodontism
  • Hypotaurodontism
  • Incomplete form of root of tooth
  • KBG syndrome
  • Lateral accessory root canals
  • Localized macrodontia
  • Localized microdontia
  • Macrodontia
  • Macrodontia
  • Macrodontia
  • Mesotaurodontism
  • Microdontia
  • Microdontia
  • Microdontia
  • Microtia
  • Multirooted tooth with convergent roots
  • Multirooted tooth with divergent roots
  • Oculootodental syndrome
  • Otodental syndrome
  • Paired teeth microdontia
  • Peg-shaped teeth
  • Peg-shaped tooth
  • Protrusion of tooth
  • Radicular dens invaginatus
  • Relative generalized macrodontia
  • Relative generalized microdontia
  • Sensorineural hearing loss in left ear
  • Sensorineural hearing loss in right ear
  • Sensorineural hearing loss of bilateral ears
  • Sharp tooth
  • Shovel-shaped incisor
  • Single tooth macrodontia
  • Single tooth microdontia
  • Supernumerary cusp of tooth
  • Supernumerary cusp of tooth
  • Supernumerary root of tooth
  • Talon cusp
  • Tapered teeth
  • Taurodontia with absent teeth and sparse hair syndrome
  • Taurodontism
  • Taurodontism
  • Tooth size discrepancy
  • True generalized microdontia
  • Tuberculum paramolare

Clinical Classification

Clinical CategoryCCSR Category CodeInpatient Default CCSROutpatient Default CCSR
Any dental condition including traumatic injuryDEN001N - Not default inpatient assignment for principal diagnosis or first-listed diagnosis.N - Not default outpatient assignment for principal diagnosis or first-listed diagnosis.
Disorders of teeth and gingivaDIG002Y - Yes, default inpatient assignment for principal diagnosis or first-listed diagnosis.Y - Yes, default outpatient assignment for principal diagnosis or first-listed diagnosis.
Nontraumatic dental conditionsDEN002N - Not default inpatient assignment for principal diagnosis or first-listed diagnosis.N - Not default outpatient assignment for principal diagnosis or first-listed diagnosis.

Clinical Information

  • Dens in Dente

    anomaly of the tooth, found chiefly in upper lateral incisors. it is characterized by invagination of the enamel at the incisal edge.

Tabular List of Diseases and Injuries

The following annotation back-references are applicable to this diagnosis code. The Tabular List of Diseases and Injuries is a list of ICD-10-CM codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more.


Inclusion Terms

Inclusion Terms
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
  • Concrescence of teeth
  • Fusion of teeth
  • Gemination of teeth
  • Dens evaginatus
  • Dens in dente
  • Dens invaginatus
  • Enamel pearls
  • Macrodontia
  • Microdontia
  • Peg-shaped conical teeth
  • Supernumerary roots
  • Taurodontism
  • Tuberculum paramolare

Type 1 Excludes

Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
  • abnormalities of teeth due to congenital syphilis A50.5
  • tuberculum Carabelli, which is regarded as a normal variation and should not be coded

Index to Diseases and Injuries References

The following annotation back-references for this diagnosis code are found in the injuries and diseases index. The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10-CM code(s).

Convert K00.2 to ICD-9-CM

  • ICD-9-CM Code: 520.2 - Abnormal tooth size/form

Patient Education


Tooth Disorders

What are teeth?

Your teeth are made of a hard, bonelike material. There are four parts:

  • Enamel, your tooth's hard surface
  • Dentin, the hard yellow part under the enamel
  • Cementum, the hard tissue that covers the root and keeps your teeth in place
  • Pulp, the soft connective tissue in the center of your tooth. It contains nerves and blood vessels.

You need your teeth for many activities that you may take for granted. These include eating, speaking and even smiling.

What are tooth disorders?

There are many different problems that can affect your teeth, including:

  • Tooth decay - damage to a tooth's surface, which can lead to cavities
  • Abscess - a pocket of pus, caused by a tooth infection
  • Impacted tooth - a tooth did not erupt (break through the gum) when it should have. It is usually wisdom teeth that are impacted, but it can sometimes happen to other teeth.
  • Misaligned teeth (malocclusion)
  • Tooth injuries such as broken or chipped teeth

What causes tooth disorders?

The causes of tooth disorders varies, depending on the problem. Sometimes the cause is not taking good care of your teeth. In other cases, you may have been born with the problem or the cause is an accident.

What are the symptoms of tooth disorders?

The symptoms can vary, depending on the problem. Some of the more common symptoms include:

  • Abnormal color or shape of the tooth
  • Tooth pain
  • Worn-down teeth

How are tooth disorders diagnosed?

Your dentist will ask about your symptoms, look at your teeth, and probe them with dental instruments. In some cases, you may need dental x-rays.

What are the treatments for tooth disorders?

The treatment will depend on the problem. Some common treatments are:

  • Fillings for cavities
  • Root canals for cavities or infections that affect the pulp (inside of the tooth)
  • Extractions (pulling teeth) for teeth that are impacted and causing problems or are too damaged to be fixed. You may also have a tooth or teeth pulled because of overcrowding in your mouth.

Can tooth disorders be prevented?

The main thing that you can do to prevent tooth disorders is to take good care of your teeth:

  • Brush your teeth twice a day with a fluoride toothpaste
  • Clean between your teeth every day with floss or another type of between-the-teeth cleaner
  • Limit sugary snacks and drinks
  • Don't smoke or chew tobacco
  • See your dentist or oral health professional regularly

[Learn More in MedlinePlus]

Code History

  • FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
  • FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
  • FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016. This was the first year ICD-10-CM was implemented into the HIPAA code set.

Footnotes

[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.