ICD-10 Logo
ICDxICD-10 Medical Coding
ICD-10 Logo
ICDxICD-10 Medical Coding
ICD 10 CodesDiagnoses
ICD 10 CodesDiagnoses
ICD-10 Logo
ICDxICD-10 Medical Coding

Comprehensive ICD-10-CM code reference with AI-powered search capabilities.

© 2025 ICD Code Compass. All rights reserved.

Browse

  • All Chapters
  • All Categories
  • Diagnoses

Tools

  • AI Code Search
ICD-10-CM codes are maintained by the CDC and CMS. This tool is for reference purposes only.
v1.0.0
ICD-10 Guide
ICD-10 CodesK08.121

K08.121

Billable

Complete loss of teeth due to periodontal diseases, class I

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/06/2025

Code Description

ICD-10 K08.121 is a billable code used to indicate a diagnosis of complete loss of teeth due to periodontal diseases, class i.

Key Diagnostic Point:

K08.121 refers to complete loss of teeth due to periodontal diseases, class I. Periodontal disease is a chronic inflammatory condition affecting the supporting structures of the teeth, including the gums, periodontal ligament, and alveolar bone. The disease progresses through stages, starting with gingivitis, which is characterized by inflammation and bleeding of the gums, and can advance to periodontitis, leading to the loss of tooth-supporting structures. In class I periodontal disease, patients may experience significant attachment loss and bone resorption, ultimately resulting in the complete loss of teeth. Clinically, patients may present with symptoms such as gum recession, mobility of teeth, and halitosis. Diagnosis typically involves a comprehensive periodontal examination, including probing depths, attachment levels, and radiographic assessment to evaluate bone loss. Early intervention is crucial to prevent further deterioration and manage the condition effectively.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Diagnostic complexity: Requires thorough periodontal assessment and understanding of disease progression.
  • Treatment complexity: Involves multi-disciplinary approaches including dental hygiene, surgical interventions, and possibly restorative dentistry.
  • Documentation requirements: Detailed documentation of periodontal status, treatment plans, and patient compliance is essential.
  • Coding specificity: Requires precise coding to differentiate between various classes of periodontal disease and associated conditions.

Audit Risk Factors

  • Common coding errors: Misclassification of periodontal disease stage or failure to document the extent of tooth loss.
  • Documentation gaps: Incomplete records regarding periodontal assessments and treatment history.
  • Billing challenges: Potential denials due to lack of supporting documentation for the diagnosis and treatment provided.

Specialty Focus

Medical Specialties

Primary medical specialty: Dentistry

Documentation Requirements

Standard ICD-10-CM documentation requirements apply

Common Clinical Scenarios

Various clinical presentations within this specialty area

Billing Considerations

Follow specialty-specific billing guidelines

Secondary specialty: Periodontics

Documentation Requirements

Standard ICD-10-CM documentation requirements apply

Common Clinical Scenarios

Various clinical presentations within this specialty area

Billing Considerations

Follow specialty-specific billing guidelines

Related ICD-10 Codes

Related CPT Codes

CPT Code

Clinical Scenario

Documentation Requirements

CPT Code

Clinical Scenario

Documentation Requirements

CPT Code

Clinical Scenario

Documentation Requirements

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The clinical significance of K08.121 lies in its association with systemic health, as periodontal disease has been linked to various systemic conditions, including cardiovascular disease and diabetes. The population health impact is substantial, with periodontal disease affecting a significant portion of adults, leading to increased healthcare utilization for dental and medical services. Quality measures related to periodontal health are critical for improving patient outcomes and reducing the burden of oral diseases in the community.

ICD-9 vs ICD-10

The clinical significance of K08.121 lies in its association with systemic health, as periodontal disease has been linked to various systemic conditions, including cardiovascular disease and diabetes. The population health impact is substantial, with periodontal disease affecting a significant portion of adults, leading to increased healthcare utilization for dental and medical services. Quality measures related to periodontal health are critical for improving patient outcomes and reducing the burden of oral diseases in the community.

Reimbursement & Billing Impact

Reimbursement considerations include verifying patient eligibility and coverage for periodontal treatments, as some plans may have specific limitations. Common denials may arise from insufficient documentation or failure to demonstrate medical necessity for procedures performed. Best practices include maintaining thorough records of patient assessments, treatment plans, and follow-up care to support claims and reduce the likelihood of audits.

Resources

Clinical References

  • •
    ICD-10 Official Guidelines for K00-K99
  • •
    Clinical Documentation Requirements

Coding & Billing References

  • •
    ICD-10 Official Guidelines for K00-K99
  • •
    Clinical Documentation Requirements

Frequently Asked Questions

What specific conditions are covered by K08.121?

K08.121 specifically covers complete loss of teeth resulting from periodontal diseases classified as class I, which includes significant attachment loss and bone resorption leading to tooth mobility and loss.

When should K08.121 be used instead of related codes?

K08.121 should be used when the complete loss of teeth is directly attributable to periodontal disease classified as class I, distinguishing it from other causes of tooth loss such as trauma or caries.

What documentation supports K08.121?

Documentation should include a comprehensive periodontal examination report, clinical notes detailing the extent of periodontal disease, treatment plans, and any relevant radiographic evidence showing bone loss.