Is K00 a billable ICD-10-CM code?

No. K00 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does K00 sit in the tabular list?

Diseases of the digestive system (K00-K95), in the block Diseases of oral cavity and salivary glands (K00-K14).

K00

K00 — Disorders of tooth development and eruption

Non-billable headerICD-10-CM

K00 is a non-billable header ICD-10-CM code for disorders of tooth development and eruption. 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.

embedded and impacted teeth (K01.-)

Other codes that can never be billed with K00

These codes carry an Excludes1 note pointing at K00. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading K00 alone.

R68.1Nonspecific symptoms peculiar to infancy
K08.1Complete loss of teeth
K08.4Partial loss of teeth

Risk adjustment

K00 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 K00

10 child codes. Green means billable.

Questions about K00

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