K00.4

Billable
ChapterK00–K95
Ranksubcategory
Official Description

Disturbances in tooth formation

Metadata & Insights
  • •2026 ICD-10-CM Edition - Effective October 1, 2025.
  • •Billable/specific code (valid for reimbursement).
  • •Chapter 11: Diseases of the Digestive System (K00-K95).

Instructional Notes

Includes
  • Aplasia and hypoplasia of cementum
  • Dilaceration of tooth
  • Enamel hypoplasia (neonatal) (postnatal) (prenatal)
  • Regional odontodysplasia
  • Turner's tooth
Excludes1(Not coded here)
  • Hutchinson's teeth and mulberry molars in congenital syphilis (A50.5)
Excludes2(Not included here)
General instructions are available for the parent sections:
View CH11 NotesView K00 Notes

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
K00.4Disturbances in tooth formation

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to K00.4:

categoryK00
Disorders of tooth development and eruption
View context instructions
chapterCH11
Diseases of the digestive system (K00-K95)
View context instructions

Alphabetic Index Mentions

These are Diagnosis Index lookup paths that route to K00.4. Use them as entry terms for search, then confirm final coding instructions in the Tabular List and notes above.

13 raw paths
Amelogenesis imperfecta1 unique routes
nonhereditaria (segmentalis)→K00.4
Aplasia1 unique routes
cementum→K00.4
Calcification1 unique routes
dentinal papilla→K00.4
Dilaceration, tooth1 unique routes
Direct index entry→K00.4
Disturbance (s)1 unique routes
tooth
formation→K00.4
Ghost1 unique routes
teeth→K00.4
Hypoplasia, hypoplastic3 unique routes
cementum→K00.4
enamel of teeth (neonatal) (postnatal) (prenatal)→K00.4
Turner's→K00.4
Odontodysplasia, regional1 unique routes
Direct index entry→K00.4
Pitting1 unique routes
teeth→K00.4
Turner's2 unique routes
hypoplasia (tooth)→K00.4
tooth→K00.4

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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