ICD10
ICD-10 Code K04.9: Other and unspecified diseases of pulp and periapical tissues
Reviewed by HealthAssure Clinical TeamUpdated 26 May 2026
What is this code?
ICD-10 entries help standardize how diagnoses are organized for coding, reporting, analytics, and documentation. 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 other and unspecified diseases of pulp and periapical tissues in a patient's medical record.
- May appear in hospital records, claims, referrals, and clinical documentation.
- This code may act more like a grouping or parent code, so a more specific child code may be used in final documentation when available.
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.
- This entry may represent a broader category rather than the most specific billable code.
Code hierarchy
chapter
11Diseases of the digestive system (K00-K95)
block
K00-K14Diseases of oral cavity and salivary glands
category
K04Diseases of pulp and periapical tissues
currentK04
Where you may see this code
You may see this entry in coding references, medical records, or claims workflows when a broader diagnosis category is being reviewed before a more specific code is chosen.
Related specialists
GastroenterologistGeneral Physician
Related codes
Sibling codes
K04.0PulpitisK04.1Necrosis of pulpbillableK04.2Pulp degenerationbillableK04.3Abnormal hard tissue formation in pulpbillableK04.4Acute apical periodontitis of pulpal originbillableK04.5Chronic apical periodontitisbillableK04.6Periapical abscess with sinusbillableK04.7Periapical abscess without sinusbillableK04.8Radicular cystbillable
Mapped diagnoses and classifications
SNOMED_CT 895215000high
Damage to tooth with pulpal involvement
Source: SNOMED International ICD-10 map
SNOMED_CT 34282009high
Disorder of periapical tissues of tooth
Source: SNOMED International ICD-10 map
SNOMED_CT 57203004high
Disorder of pulp of tooth
Source: SNOMED International ICD-10 map
SNOMED_CT 307001000119105high
Endodontic overfill
Source: SNOMED International ICD-10 map
SNOMED_CT 307011000119108high
Endodontic underfill
Source: SNOMED International ICD-10 map
SNOMED_CT 1236833005high
Exposure of pulp of tooth due to dental trauma
Source: SNOMED International ICD-10 map
Coding guidelines
Compatibility
Legacy code aligns to an official FY 2026 category. Frontend should resolve to the official category page and surface the billable child codes.
Legacy codes
K04.9
Replacement codes
K04.90 — Unspecified diseases of pulp and periapical tissuesK04.99 — Other diseases of pulp and periapical tissues
Common synonyms
Other and unspecified diseases of pulp and periapical tissuesOther and diseases of pulp and periapical tissues
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.