K00

Non-Billable
ChapterK00–K95
Rankcategory
Official Description

Disorders of tooth development and eruption

Metadata & Insights
  • •2026 ICD-10-CM Edition - Effective October 1, 2025.
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 11: Diseases of the Digestive System (K00-K95).

CH11 Parent Instructions

Excludes2(Not included here)
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

Instructional Notes

Excludes2(Not included here)
  • embedded and impacted teeth (K01.-)

Clinical Hierarchy

CH11Diseases of the digestive system (K00-K95)
K00-K14Diseases of oral cavity and salivary glands (K00-K14)
K00Disorders of tooth development and eruption
K00.0Anodontia
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

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to K00:

chapterCH11
Diseases of the digestive system (K00-K95)
View context instructions

Alphabetic Index Mentions

These are Diagnosis Index lookup paths that route to K00. Use them as entry terms for search, then confirm final coding instructions in the Tabular List and notes above.

25 raw paths
Abnormal, abnormality, abnormalities3 unique routes
form
teeth→K00
size, tooth, teeth→K00
tooth, teeth (form) (size)→K00
Absence (of) (organ or part) (complete or partial)1 unique routes
teeth, tooth (congenital)→K00
Accessory (congenital)3 unique routes
roots (teeth)→K00
teeth, tooth→K00
tooth, teeth→K00
Amelogenesis imperfecta2 unique routes
Direct index entry→K00
nonhereditaria (segmentalis)→K00
Anodontia (complete) (partial) (vera)1 unique routes
Direct index entry→K00
Anomaly, anomalous (congenital) (unspecified type)3 unique routes
form, teeth→K00
tooth, teeth→K00(2 variants)
eruption→K00
Aplasia1 unique routes
cementum→K00
Brown enamel of teeth (hereditary)1 unique routes
Direct index entry→K00
Calcification1 unique routes
dentinal papilla→K00
Change (s) (in) (of)1 unique routes
color, tooth, teeth
during formation→K00
Concrescence (teeth)1 unique routes
Direct index entry→K00
Conical1 unique routes
teeth→K00
Defect, defective1 unique routes
dentin (hereditary)→K00
Deficiency, deficient1 unique routes
tooth bud→K00
Deformity1 unique routes
tooth, teeth→K00
Dens evaginatus, in dente or invaginatus1 unique routes
Direct index entry→K00
Dentia praecox1 unique routes
Direct index entry→K00
Dentin1 unique routes
opalescent→K00

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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