All ICD10 Codes

K05.21

Non-Billable
ChapterK00–K95
Ranksubcategory
Official Description

Aggressive periodontitis, localized

Use a more specific code (4 billable)
K05.211Aggressive periodontitis, localized, slightK05.212Aggressive periodontitis, localized, moderateK05.213Aggressive periodontitis, localized, severeK05.219Aggressive periodontitis, localized, unspecified severity
Metadata & Insights
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 11: Diseases of the Digestive System (K00-K95).

Instructional Notes

Includes
  • Periodontal abscess
General instructions are available for the parent sections:
View CH11 NotesView K05 NotesView K05.2 Notes

Clinical Hierarchy

BillableHas subcodes
CH11Diseases of the digestive system (K00-K95)
K00-K14Diseases of oral cavity and salivary glands (K00-K14)
K05Gingivitis and periodontal diseases
K05.2Aggressive periodontitis
K05.21Aggressive periodontitis, localizedNot billable
K05.211Aggressive periodontitis, localized, slightBillable
K05.212Aggressive periodontitis, localized, moderateBillable
K05.213Aggressive periodontitis, localized, severeBillable
K05.219Aggressive periodontitis, localized, unspecified severityBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to K05.21:

subcategoryK05.2
Aggressive periodontitis
View context instructions
categoryK05
Gingivitis and periodontal diseases
View context instructions
chapterCH11
Diseases of the digestive system (K00-K95)
View context instructions

Code History

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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