ICD10BillableValid for clinical use
ICD-10 Code K00.4: Disturbances in tooth formation
Reviewed by HealthAssure Clinical TeamUpdated 26 May 2026
What is this code?
ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Diseases of the digestive system (K00-K95).
When is it used?
- May be used when a clinician documents disturbances in tooth formation in a patient's medical record.
- May appear in hospital records, claims, referrals, and clinical documentation.
- This code can be used as a clinically usable diagnosis entry in standardized coding workflows.
What it does not mean
- A code alone does not explain severity, treatment plan, or outcome.
- A medical code should not be treated as a substitute for a doctor's diagnosis or advice.
Code hierarchy
chapter
11Diseases of the digestive system (K00-K95)
block
K00-K14Diseases of oral cavity and salivary glands
category
K00Disorders of tooth development and eruption
currentK00
Official coding notes
Inclusion terms
- Aplasia and hypoplasia of cementum
- Dilaceration of tooth
- Enamel hypoplasia (neonatal) (postnatal) (prenatal)
- Regional odontodysplasia
- Turner's tooth
Excludes1 (do not code together)
- Hutchinson's teeth and mulberry molars in congenital syphilis (A50.5)
Excludes2 (may code together if documented)
- mottled teeth (K00.3)
Where you may see this code
You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records.
Related specialists
GastroenterologistGeneral Physician
Related codes
K00.0AnodontiacodeK00.1Supernumerary teethcodeK00.2Abnormalities of size and form of teethcodeK00.3Mottled teethcodeK00.5Hereditary disturbances in tooth structure, not elsewhere classifiedcodeK00.6Disturbances in tooth eruptioncodeK00.7Teething syndromecodeK00.8Other disorders of tooth developmentcodeK00.9Disorder of tooth development, unspecifiedcode
Sibling codes
K00.0AnodontiabillableK00.1Supernumerary teethbillableK00.2Abnormalities of size and form of teethbillableK00.3Mottled teethbillableK00.5Hereditary disturbances in tooth structure, not elsewhere classifiedbillableK00.6Disturbances in tooth eruptionbillableK00.7Teething syndromebillableK00.8Other disorders of tooth developmentbillableK00.9Disorder of tooth development, unspecifiedbillable
Mapped diagnoses and classifications
SNOMED_CT 699382004high
Agenesis of enamel
Source: SNOMED International ICD-10 map
SNOMED_CT 196278005high
Antenatal enamel hypoplasia
Source: SNOMED International ICD-10 map
SNOMED_CT 80289005high
Aplasia of cementum
Source: SNOMED International ICD-10 map
SNOMED_CT 1360033005high
Blunderbuss shaped root canal of tooth
Source: SNOMED International ICD-10 map
SNOMED_CT 1362144005high
C shaped root canal of tooth
Source: SNOMED International ICD-10 map
SNOMED_CT 1055327006high
Congenital hypoplasia of deciduous tooth
Source: SNOMED International ICD-10 map
Coding guidelines
Compatibility
Legacy and official ICD code match exactly.
Legacy codes
K00.4
Common synonyms
Disturbances in tooth formation
Frequently asked questions
About this content
This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.