K00.1 Supernumerary teeth

Billable ICD-10-CM code, FY2026.

Applicable to

• Distomolar
• Fourth molar
• Mesiodens
• Paramolar
• Supplementary teeth

Excludes2 (not included here)

• supernumerary roots (K00.2)

Applies from K00 Disorders of tooth development and eruption

Excludes2 (not included here)

• embedded and impacted teeth (K01.-)

MS-DRG index

Defines the logic of DRG(s) 011-013 in MDC PRE.

Approximate ICD-9-CM (GEMs)

• 520.1 Supernumerary teeth

Diagnosis Index entries for K00.1

• Accessory (congenital) › teeth, tooth
• Accessory (congenital) › tooth, teeth
• Distomolar (fourth molar)
• Excess, excessive, excessively › number of teeth
• Fourth › molar
• Mesiodens, mesiodentes
• Paramolar
• Supernumerary (congenital) › teeth
• Supplemental teeth

Nearby codes

• K00 Disorders of tooth development and eruption
• K00.0 Anodontia
• K00.1 Supernumerary teeth (this code)
• K00.2 Abnormalities of size and form of teeth
• 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