ICD-10-CM 2027
ICD-10 code for Concrescence
From the official ICD-10-CM alphabetic index entry “Concrescence (teeth)”. Page updated September 29, 2026.
About coding Concrescence
The ICD-10-CM code for Concrescence is K00.2 (Abnormalities of size and form of teeth).
Within K00 (disorders of tooth development and eruption), K00.2 is specifically for abnormalities of size and form of teeth. Related codes cover Anodontia (K00.0), Supernumerary teeth (K00.1), Mottled teeth (K00.3), disturbances in tooth formation (K00.4), hereditary disturbances in tooth structure, not elsewhere classified (K00.5), disturbances in tooth eruption (K00.6), Teething syndrome (K00.7), other disorders of tooth development (K00.8) and 1 more.
Don't report K00.2 together with the conditions in its Excludes1 note: abnormalities of teeth due to congenital syphilis (A50.5) and tuberculum Carabelli, which is regarded as a normal variation and should not be coded.
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
Don't confuse with (Excludes1 for K00.2)
- abnormalities of teeth due to congenital syphilis (A50.5)
- tuberculum Carabelli, which is regarded as a normal variation and should not be coded
Common questions about Concrescence ICD-10 codes
What is the ICD-10 code for Concrescence?
- K00.2 — Abnormalities of size and form of teeth.
Is K00.2 billable?
- Yes. K00.2 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can K00.2 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict K00.2 as a principal diagnosis.
Is K00.2 a CC or MCC?
- No. K00.2 is neither a CC nor an MCC under MS-DRG v44.0.