K03.81 Cracked tooth

Billable ICD-10-CM code, FY2026.

Excludes1 (never code together)

• asymptomatic craze lines in enamel - omit code
• broken or fractured tooth due to trauma (S02.5)

Applies from K03 Other diseases of hard tissues of teeth

Excludes2 (not included here)

• bruxism (F45.8)
• dental caries (K02.-)
• teeth-grinding NOS (F45.8)

MS-DRG index

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

Approximate ICD-9-CM (GEMs)

• 521.81 Cracked tooth

Code annotations containing back-references to K03.81

Back-references to K03.81

• Type 1 Excludes: K08.53 Fractured dental restorative material ("cracked tooth (K03.81)")
• Type 2 Excludes: M27.63 Post-osseointegration mechanical failure of dental implant ("cracked tooth (K03.81)")
• Type 1 Excludes: S02.5 Fracture of tooth (traumatic) ("cracked tooth (nontraumatic) (K03.81)")

Diagnosis Index entries for K03.81

• Cracked tooth

Nearby codes

• K03.4 Hypercementosis
• K03.5 Ankylosis of teeth
• K03.6 Deposits [accretions] on teeth
• K03.7 Posteruptive color changes of dental hard tissues
• K03.8 Other specified diseases of hard tissues of teeth
• K03.81 Cracked tooth (this code)
• K03.89 Other specified diseases of hard tissues of teeth
• K03.9 Disease of hard tissues of teeth, unspecified