K00.2
Abnormalities of size and form of teeth
BillableComplete code, valid to report
K00.2 (also written K002) is a billable ICD-10-CM diagnosis code for abnormalities of size and form of teeth. It is part of the FY2027 code set, effective October 1, 2026. It is one of the 10 codes in category K00 (Disorders of tooth development and eruption). The Alphabetic Index lists it under 33 entries. Its coding notes include 2 Excludes1 entries and 9 Excludes2 entries.
Excludes1
Not coded here. The listed conditions generally should not be reported together.
This code
- abnormalities of teeth due to congenital syphilis (A50.5)
- tuberculum Carabelli, which is regarded as a normal variation and should not be coded
Excludes2
Not included here. Both codes may be reported if the patient has both conditions.
Also from chapter/block level (8 notes)
Inherited from Chapter 11 Diseases of the digestive system
- 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)
Inclusion terms
Conditions classified to this code.
This 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
Alphabetic Index terms
Terms the official Alphabetic Index lists for this code. 33 entries
- Abnormal, abnormality, abnormalities, form, teeth
- Abnormal, abnormality, abnormalities, size, tooth, teeth
- Abnormal, abnormality, abnormalities, tooth, teeth (form) (size)
- Accessory (congenital), roots (teeth)
- Anomaly, anomalous (congenital) (unspecified type), form, teeth
- Concrescence (teeth)
- Conical, teeth
- Deformity, tooth, teeth
- Dens evaginatus, in dente or invaginatus
- Dichotomy, teeth
- Elongated, elongation (congenital), tooth, teeth
- Enamel pearls
Show 21 more
- Enameloma
- Fusion, fused (congenital), tooth, teeth
- Gemination, tooth, teeth
- Macrodontia
- Microdontia
- Molarization of premolars
- Pearl (s), enamel
- Peg-shaped teeth
- Predeciduous teeth
- Premolarization, cuspids
- Schizodontia
- Shovel-shaped incisors
- Spicule tooth
- Supernumerary (congenital), roots (of teeth)
- Synodontia
- T-shaped incisors
- Taurodontism
- Tuberculum, Carabelli
- Tuberculum, occlusal
- Tuberculum, paramolare
- Twinning, teeth