K00.2: Abnormalities of size and form of teeth

Clinical notes

Excludes1 (not coded here)

An Excludes1 note is a pure exclusion: the excluded condition and this code should never be reported together, because the two conditions cannot occur at the same time (e.g. a congenital form vs. an acquired form of the same disease).

abnormalities of teeth due to congenital syphilis (A50.5)
tuberculum Carabelli, which is regarded as a normal variation and should not be coded

Also known as

Alternate wording, synonyms, or specific conditions that fall under this code, listed to help confirm you've picked the right one.

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

Documentation support

General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.

•Confirm the excluded condition(s) listed above are not also present — Excludes1 conditions cannot be coded together with this one.
•As a general rule, code to the highest level of specificity supported by the documentation in the medical record.

Related codes in this category

ICD-9-CM equivalent

Informational only — GEM mappings are approximate, not guaranteed one-to-one equivalents. Verify before use in billing.

5202

View full ICD-10 → ICD-9 crosswalk →

Associated MS-DRGs

K00.2 can serve as the principal diagnosis for these Medicare Severity Diagnosis-Related Groups.

Informational only — actual DRG assignment also depends on procedures, complications/comorbidities (CC/MCC), discharge status, and payer-specific rules not reflected here.