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K03

K03Other diseases of hard tissues of teeth

Non-billable headerICD-10-CM

K03 is a non-billable header ICD-10-CM code for other diseases of hard tissues of teeth. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes2 — not included here, but may coexist

The excluded condition is not part of this code, but a patient can have both. You may code both.

Other codes that can never be billed with K03

These codes carry an Excludes1 note pointing at K03. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading K03 alone.

  • S02.5Fracture of tooth (traumatic)
  • S02.5XXAFracture of tooth (traumatic), initial encounter for closed fracture
  • S02.5XXBFracture of tooth (traumatic), initial encounter for open fracture
  • S02.5XXDFracture of tooth (traumatic), subsequent encounter for fracture with routine healing
  • S02.5XXGFracture of tooth (traumatic), subsequent encounter for fracture with delayed healing
  • S02.5XXKFracture of tooth (traumatic), subsequent encounter for fracture with nonunion
  • S02.5XXSFracture of tooth (traumatic), sequela
  • K08.53Fractured dental restorative material

Risk adjustment

K03 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Code to one of these instead K03

10 child codes. Green means billable.

Questions about K03

Is K03 a billable ICD-10-CM code?
No. K03 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does K03 sit in the tabular list?
Diseases of the digestive system (K00-K95), in the block Diseases of oral cavity and salivary glands (K00-K14).
ICD-10-CMFY2026-Apr· effective April 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release — see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.