K04.02

Billable
ChapterK00–K95
Ranksubcategory
Official Description

Irreversible pulpitis

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).
General instructions are available for the parent sections:
View CH11 NotesView K04.0 Notes

Clinical Hierarchy

CH11Diseases of the digestive system (K00-K95)
K00-K14Diseases of oral cavity and salivary glands (K00-K14)
K04Diseases of pulp and periapical tissues
K04.0Pulpitis
K04.02Irreversible pulpitis

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to K04.02:

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

Alphabetic Index Mentions

These are Diagnosis Index lookup paths that route to K04.02. Use them as entry terms for search, then confirm final coding instructions in the Tabular List and notes above.

7 raw paths
Abscess (connective tissue) (embolic) (fistulous) (infective) (metastatic) (multiple) (pernicious) (pyogenic) (septic)1 unique routes
pulp, pulpal (dental)
irreversible→K04.02
Endodontitis1 unique routes
irreversible→K04.02
Infection, infected, infective (opportunistic)1 unique routes
tooth, teeth
pulp
irreversible→K04.02
Odontomyelitis (closed) (open)1 unique routes
irreversible→K04.02
Polyp, polypus2 unique routes
dental
irreversible→K04.02
pulpal (dental)
irreversible→K04.02
Pulpitis (acute) (anachoretic) (chronic) (hyperplastic) (putrescent) (suppurative) (ulcerative)1 unique routes
irreversible→K04.02

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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