K00.0 — Anodontia
K00.0 is a billable, specific ICD-10-CM code for anodontia. It is valid for submission on a claim.
Excludes1 — never code together
These conditions cannot occur together. Billing both on the same encounter is a denial.
- acquired absence of teeth (K08.1-)
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Hypodontia
- Oligodontia
Other codes that can never be billed with K00.0
These codes carry an Excludes1 note pointing at K00.0. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading K00.0 alone.
Risk adjustment
K00.0 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.
How K00.0 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to K00.0.
- Anodontia(complete) (partial) (vera)
- Absence›teeth, tooth(congenital)
- Deficiency, deficient›tooth bud
Related codes at this level
Codes that share K00. If K00.0 is not quite right, the correct code is usually one of these.
- K00.1Supernumerary teeth
- K00.2Abnormalities of size and form of teeth
- K00.3Mottled teeth
- K00.4Disturbances in tooth formation
- K00.5Hereditary disturbances in tooth structure, not elsewhere classified
- K00.6Disturbances in tooth eruption
- K00.7Teething syndrome
- K00.8Other disorders of tooth development
- K00.9Disorder of tooth development, unspecified
Questions about K00.0
- Is K00.0 a billable ICD-10-CM code?
- Yes. K00.0 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does K00.0 sit in the tabular list?
- Diseases of the digestive system (K00-K95), in the block Diseases of oral cavity and salivary glands (K00-K14).
- What cannot be coded together with K00.0?
- K00.0 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.