What does ICD-10 code K04.1 mean?

ICD-10 code K04.1 is the standardized code used for necrosis of pulp in medical records and coding systems.

When is ICD-10 code K04.1 used?

Doctors, hospitals, and insurers may use ICD-10 code K04.1 when recording necrosis of pulp in a standardized format.

Does ICD-10 code K04.1 confirm a diagnosis?

No. A code helps standardize documentation and claims, but it should not be read as a substitute for a clinician's full assessment.

ICD10BillableValid for clinical use

ICD-10 Code K04.1: Necrosis of pulp

Name: ICD-10 Code K04.1: Necrosis of pulp
Creator: HealthAssure Clinical Team
Published: 2026-05-26T05:25:39.445Z

K04.1 is a billable ICD-10 diagnosis code used to classify Necrosis of pulp in medical records and claims. You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records. 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).

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 necrosis of pulp 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

Official coding notes

Inclusion terms

Pulpal gangrene

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

Sibling codes

K04.0Pulpitis K04.2Pulp degenerationbillable K04.3Abnormal hard tissue formation in pulpbillable K04.4Acute apical periodontitis of pulpal originbillable K04.5Chronic apical periodontitisbillable K04.6Periapical abscess with sinusbillable K04.7Periapical abscess without sinusbillable K04.8Radicular cystbillable K04.9Other and unspecified diseases of pulp and periapical tissues

Mapped diagnoses and classifications

SNOMED_CT 196333005high

Mummified pulp

Source: SNOMED International ICD-10 map

SNOMED_CT 42711005high

Necrosis of the pulp

Source: SNOMED International ICD-10 map

Coding guidelines

Compatibility

Legacy and official ICD code match exactly.

Legacy codes

K04.1

Common synonyms

Necrosis of pulp

Frequently asked questions

Code details

CodeK04.1

SystemICD10

Display nameNecrosis of pulp

ChapterDiseases of the digestive system (K00-K95)

BlockDiseases of oral cavity and salivary glands

Flags

BillableYes

Valid clinical useYes

Source

SourceICD-10

Version2026-annual

Releaseannual

Year2026

Index terms

Matched terms

Gangrene, gangrenous(connective tissue) (dropsical) (dry) (moist) (skin) (ulcer)Gangrene, gangrenous(connective tissue) (dropsical) (dry) (moist) (skin) (ulcer)Necrosis, necrotic(ischemic)Necrosis, necrotic(ischemic)Putrescent pulp(dental)

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.