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    v1.0.28
    OpenPayerBilling CodesDiseases of oral cavity and salivary glandsICD-10-CM k05-gingivitis-and-periodontal-diseases
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    ICD-10-CM Code For Gingivitis And Periodontal Diseases: Group Overview

    The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) code group K05 includes gingivitis, chronic and aggressive periodontitis, periodontitis as a manifestation of systemic conditions, and other periodontal diseases affecting the gums and supporting structures of the teeth. These ICD-10-CM diagnosis codes are used to document clinical findings such as gingival inflammation, pocketing, attachment loss, bone loss, and involvement of surrounding tissues, capturing disease severity and extent. Accurate coding within the ICD-10-CM K05 group supports proper claim adjudication, complete clinical documentation, and appropriate reimbursement.

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    ICD-10-CM K05: Gingivitis And Periodontal Diseases Overview

    This group includes inflammatory and degenerative conditions affecting the gingiva and supporting structures of the teeth, including gingivitis and various forms of periodontitis. It targets diseases of the oral cavity and periodontium and reflects local infection, attachment loss, and tissue destruction. Accurate coding matters for complete clinical documentation and for appropriate reimbursement tied to the level of periodontal disease severity.

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    When to Use

    Use a code from this group when clinical examination or diagnostic findings document gingival inflammation, periodontal pocketing, clinical attachment loss, or alveolar bone loss. Codes in this group are selected based on the specific type of periodontal disease, severity, and any association with systemic conditions.

    ICD-10-CM Codes

    25 rows

    ICD-10-CM 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

    Showing 1–20 of 25

    DRG Codes

    6 rows

    DRG CodeDescription
    011Tracheostomy for Face, Mouth and Neck Diagnoses or Laryngectomy with MCC
    012Tracheostomy for Face, Mouth and Neck Diagnoses or Laryngectomy with CC
    013Tracheostomy for Face, Mouth and Neck Diagnoses or Laryngectomy without CC/MCC
    157Dental and Oral Diseases with MCC
    158Dental and Oral Diseases with CC
    159Dental and Oral Diseases without CC/MCC

    Typical Clinical Scenarios

    • An adult patient presents to a primary care clinic with diffuse gum swelling, bleeding with brushing for several days, and visible plaque buildup after recent poor oral hygiene and illness-related dry mouth. The clinician documents generalized gingival inflammation without attachment loss and prescribes hygiene measures and referral to dental care, assigning a diagnosis that reflects acute or chronic gingivitis without periodontitis. Typical codes: K05.00, K05.01
    • A middle-aged patient is evaluated in a dental specialty clinic for progressive tooth mobility, deep periodontal pockets, and radiographic bone loss after years of untreated periodontal disease; the patient reports chronic halitosis and intermittent purulent drainage from periodontal pockets. The dentist documents localized or generalized periodontitis with specific staging based on tooth involvement and assigns a periodontal disease code indicating chronic periodontitis with periodontal pocketing and attachment loss. Typical codes: K05.30, K05.311, K05.312
    • An older patient with diabetes presents to urgent dental care with acute severe gum infection, increased tooth mobility, and systemic symptoms of malaise and low-grade fever; the clinician documents necrotizing or rapidly progressing periodontal infection complicating systemic disease and selects a code reflecting periodontitis as a complication or with explicit necrosis/rapid progression when applicable. Typical codes: K05.4, K05.5, K05.6

    Related Codes

    K00-DISORDERS-OF-TOOTH-DEVELOPMENT-AND-ERUPTION

    ICD-10-CM Code For Disorders Of Tooth Development And Eruption: Group Overview

    K01-EMBEDDED-AND-IMPACTED-TEETH

    ICD-10-CM Code For Embedded And Impacted Teeth: Group Overview

    K02-DENTAL-CARIES

    ICD-10-CM Code For Dental Caries: Group Overview

    K03-OTHER-DISEASES-OF-HARD-TISSUES-OF-TEETH

    ICD-10-CM Code For Other Diseases Of Hard Tissues Of Teeth: Group Overview

    K04-DISEASES-OF-PULP-AND-PERIAPICAL-TISSUES

    ICD-10-CM Code For Diseases Of Pulp And Periapical Tissues: Group Overview

    K06-OTHER-DISORDERS-OF-GINGIVA

    ICD-10-CM Code For Other Disorders Of Gingiva And Edentulous Alveolar Ridge: Group Overview

    K08-OTHER-DISORDERS-OF-TEETH

    ICD-10-CM Code For Other Disorders Of Teeth And Supporting Structures: Group Overview

    K09-CYSTS-OF-ORAL-REGION

    ICD-10-CM Code For Cysts Of Oral Region Not Elsewhere Classified: Group Overview

    K11-DISEASES-OF-SALIVARY-GLANDS

    ICD-10-CM Code For Diseases Of Salivary Glands: Group Overview

    K12-STOMATITIS-AND-RELATED-LESIONS

    ICD-10-CM Code For Stomatitis And Related Lesions: Group Overview

    Showing 1–10 of 12

    Frequently Asked Questions

    References

    1. 1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
    2. 2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
    3. 3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.
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