K05.2
ICD-10Non-billable categoryAggressive periodontitis
Official ICD-10-CM descriptor (FY2026)
Aggressive periodontitis
K05.2 is a category heading, not a billable code. CMS does not accept it on a claim; report one of the more specific codes beneath it.
Inclusion terms
- Acute pericoronitis
Excludes1
Not coded here. An Excludes1 code should never be reported at the same time as the code above it.
- acute apical periodontitis (K04.4)
- periapical abscess (K04.7)
- periapical abscess with sinus (K04.6)
ICD-10-CM FY2026 defines 3 codes beneath K05.2. See the ICD-10-CM index for what this site publishes.
Related codes in K05
Where this code sits
- Parent code
- K05
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ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.