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K05.221

K05.221: Aggressive periodontitis, generalized, slight

Billable / specific codeICD-10-CM

K05.221 is a billable, specific ICD-10-CM code for aggressive periodontitis, generalized, slight. It is valid for submission on a claim.

Check K05.221 with the rest of the claim: free scrubber

Excludes1 inherited from the categories above K05.221

A category’s note binds every code beneath it.

Written on K05.2: Aggressive periodontitis

  • acute apical periodontitis (K04.4)
  • periapical abscess (K04.7)
  • periapical abscess with sinus (K04.6)

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Alphabetic index entries that lead here

  • Periodontitis›acute›generalized›slight
  • Periodontitis›aggressive›generalized›slight
  • Abscess›gingival›aggressive›generalized›slight
  • Abscess›gum›aggressive›generalized›slight

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under K05.22

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.