2026 ICD-10-CM Diagnosis Code K05.10Chronic gingivitis, plaque induced

ICD-10-CM Codes›K00–K95›K00-K14›K05

ICD-10-CM K05.10
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

K05.10 is a billable ICD-10-CM diagnosis code for chronic gingivitis, plaque induced. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 157 through 159. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Any dental condition including traumatic injury; Caries, periodontitis, and other preventable dental conditions; and Disorders of teeth and gingiva.

Code Identity

ICD-10-CM Code
K05.10
Billable Status
Yes — Valid for Submission
Code Describes
Chronic gingivitis, plaque induced
Short Description
Chronic gingivitis, plaque induced
Same as the full description in the CMS dataset.
Parent Code
K05.1
Chronic gingivitis

Code Classification

ChapterK00–K95Diseases of the digestive system
SectionK00-K14Diseases of oral cavity and salivary glands
CategoryK05Gingivitis and periodontal diseases
This CodeK05.10Chronic gingivitis, plaque induced

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Accretion on teeth
  • Chronic desquamative gingivitis
  • Chronic fibro-edematous gingivitis
  • Chronic fibrous gingivitis
  • Chronic gingivitis
  • Chronic marginal gingivitis
  • Chronic necrotizing ulcerative gingivitis
  • Dental plaque induced gingivitis
  • Dental plaque on teeth
  • Dental plaque on tooth
  • Dental plaque with chronic gingivitis
  • Desquamative gingivitis
  • Eruptive gingivitis
  • Foreign body gingivitis
  • Generalized gingivitis
  • Generalized gingivitis with reduced periodontal tissue and stable periodontitis
  • Generalized gingivitis with reduced periodontal tissue without periodontitis
  • Generalized marginal gingivitis
  • Gingival disease caused by bacteria
  • Gingival disease co-occurrent with diabetes mellitus
  • Gingival disease due to dental plaque
  • Gingival disease due to pregnancy
  • Gingival erythema
  • Gingival papillary cratering
  • Gingivitis
  • Gingivitis co-occurrent with diabetes mellitus
  • Gingivitis due to dental plaque with local contributing factor
  • Gingivitis due to disorder of cellular component of blood
  • Gingivitis exacerbated by hyposalivation
  • Gingivitis exacerbated by plaque retentive restoration
  • Granulomatous foreign body gingivitis
  • Hyperplasia of gingiva
  • Hyperplastic gingivitis
  • Lichenoid foreign body gingivitis
  • Linear gingival erythema
  • Linear gingival erythema caused by fungus
  • Localized gingivitis
  • Localized gingivitis due to dental biofilm with intact periodontal tissue
  • Localized gingivitis with reduced periodontal tissue and stable periodontitis
  • Localized gingivitis with reduced periodontal tissue without periodontitis
  • Mild gingivitis
  • Moderate gingivitis
  • Necrotizing ulcerative gingivitis
  • Oral lichenoid reaction
  • Papillary gingivitis
  • Severe gingivitis
  • Simple marginal gingivitis
  • Suppurative inflammation of oral soft tissue
  • Suppurative inflammation of subgingival space
  • Swollen gums
  • Ulceration of gingivae
  • Ulcerative gingivitis

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Inclusion Terms

  • Chronic gingivitis NOS
  • Gingivitis NOS

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Disturbance(s)
      • keratinization NEC
        • gingiva
    • Disturbance(s)
      • keratinization NEC
        • gingiva
          • plaque induced
    • Gingivitis
    • Gingivitis
      • chronic (desquamative) (hyperplastic) (simple marginal) (pregnancy associated) (ulcerative)
    • Gingivitis
      • chronic (desquamative) (hyperplastic) (simple marginal) (pregnancy associated) (ulcerative)
        • plaque induced
    • Gingivostomatitis
    • Infection, infected, infective(opportunistic)
      • gingiva (chronic)
    • Infection, infected, infective(opportunistic)
      • gingiva (chronic)
        • plaque induced
    • Infection, infected, infective(opportunistic)
      • gum (chronic)
    • Infection, infected, infective(opportunistic)
      • gum (chronic)
        • plaque induced
    • Inflammation, inflamed, inflammatory(with exudation)
      • gum
    • Inflammation, inflamed, inflammatory(with exudation)
      • gum
        • plaque induced
    • Ulcer, ulcerated, ulcerating, ulceration, ulcerative
      • gingivitis
    • Ulcer, ulcerated, ulcerating, ulceration, ulcerative
      • gingivitis
        • plaque induced

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR DEN001
Any dental condition including traumatic injury
Default principal diagnosis: inpatient No · outpatient No
CCSR DEN003
Caries, periodontitis, and other preventable dental conditions
Default principal diagnosis: inpatient No · outpatient No
CCSR DIG002
Disorders of teeth and gingiva
Default principal diagnosis: inpatient Yes · outpatient Yes
CCSR DEN002
Nontraumatic dental conditions
Default principal diagnosis: inpatient No · outpatient No

Clinical InformationClinical

  • Gingivitis

    inflammation of gum tissue (gingiva) without loss of connective tissue.

  • Gingivitis, Necrotizing Ulcerative

    an acute or chronic gingivitis characterized by redness and swelling, necrosis extending from the interdental papillae along the gingival margins, pain; hemorrhage, necrotic odor, and often a pseudomembrane. the condition may extend to the oral mucosa; tongue; palate; or pharynx. the etiology is somewhat unclear, but may involve a complex of fusobacterium nucleatum along with spirochetes borrelia or treponema.

  • Gingiva

    oral tissue surrounding and attached to teeth.

  • Chronic Gingivitis

    chronic painless inflammation of the gums. it is characterized by erythema and edema of the gums and bleeding while brushing the teeth.

  • Gingivitis

    a disorder involving inflammation of the gums; may affect surrounding and supporting structures of the teeth.

  • Necrotizing Ulcerative Gingivitis|Vincent Angina|Vincent's Angina

    a bacterial infectious process affecting the gums. it is characterized by the development of necrotic, ulcerated, and painful lesions with creation of pseudomembranes extending along the gingival margins.

Patient EducationClinical

Gum Disease

If you have gum disease, you're not alone. Many U.S. adults currently have some form of the disease. It ranges from simple gum inflammation, called gingivitis, to serious damage to the tissue and bone supporting the teeth. In the worst cases, you can lose teeth.

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert K05.10 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
523.10 Chronc gingititis,plaque
Exact Match The mapping is direct, with no qualifiers.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About K05.10Overview

Is K05.10 (Chronic gingivitis) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report chronic gingivitis, plaque induced on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does K05.10 group to?

When chronic gingivitis, plaque induced is the principal diagnosis on an inpatient stay, it groups to MS-DRG 157, 158, 159, with relative weights from 0.7085 to 1.7168 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of K05.10?

Under the General Equivalence Mappings, chronic gingivitis, plaque induced converts to ICD-9-CM 523.10 (chronc gingititis,plaque). The mapping is a direct match.

Footnotes

[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:

  • The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
  • The condition places limitations on self-care, independent living, and social interactions.