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K05 Gingivitis and periodontal diseases

ICD-10-CM category K05 sits in Chapter 11 (Diseases of the digestive system, K00-K95). It contains 25 billable codes for FY2027, effective October 1, 2026 to September 30, 2027. Always code to the most specific code available: a code with more characters that describes the diagnosis more precisely takes priority over a shorter one.

Subcategories

K05.0 Acute gingivitisK05.1 Chronic gingivitisK05.2 Aggressive periodontitisK05.21 Aggressive periodontitis, localizedK05.22 Aggressive periodontitis, generalizedK05.3 Chronic periodontitisK05.31 Chronic periodontitis, localizedK05.32 Chronic periodontitis, generalized

Billable codes in K05

CodeDescription
K05.00Acute gingivitis, plaque induced
K05.01Acute gingivitis, non-plaque induced
K05.10Chronic gingivitis, plaque induced
K05.11Chronic gingivitis, non-plaque induced
K05.20Aggressive periodontitis, unspecified
K05.211Aggressive periodontitis, localized, slight
K05.212Aggressive periodontitis, localized, moderate
K05.213Aggressive periodontitis, localized, severe
K05.219Aggressive periodontitis, localized, unspecified severity
K05.221Aggressive periodontitis, generalized, slight
K05.222Aggressive periodontitis, generalized, moderate
K05.223Aggressive periodontitis, generalized, severe
K05.229Aggressive periodontitis, generalized, unspecified severity
K05.30Chronic periodontitis, unspecified
K05.311Chronic periodontitis, localized, slight
K05.312Chronic periodontitis, localized, moderate
K05.313Chronic periodontitis, localized, severe
K05.319Chronic periodontitis, localized, unspecified severity
K05.321Chronic periodontitis, generalized, slight
K05.322Chronic periodontitis, generalized, moderate
K05.323Chronic periodontitis, generalized, severe
K05.329Chronic periodontitis, generalized, unspecified severity
K05.4Periodontosis
K05.5Other periodontal diseases
K05.6Periodontal disease, unspecified

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