K05.6 Periodontal disease, unspecified

Billable ICD-10-CM code, FY2026.

Applies from K05 Gingivitis and periodontal diseases

Use additional code

• code to identify:
• alcohol abuse and dependence (F10.-)
• exposure to environmental tobacco smoke (Z77.22)
• exposure to tobacco smoke in the perinatal period (P96.81)
• history of tobacco dependence (Z87.891)
• occupational exposure to environmental tobacco smoke (Z57.31)
• tobacco dependence (F17.-)
• tobacco use (Z72.0)

MS-DRG index

Defines the logic of DRG(s) 011-013 in MDC PRE.

Approximate ICD-9-CM (GEMs)

• 523.9 Unspecified gingival and periodontal disease (approximate)

Code annotations containing back-references to K05.6

Back-references to K05

• Type 2 Excludes: K13 Other diseases of lip and oral mucosa ("certain disorders of gingiva and edentulous alveolar ridge (K05-K06)")

Diagnosis Index entries for K05.6

• Disease, diseased › parodontal
• Disease, diseased › periodontal

Nearby codes

• K05.322 Chronic periodontitis, generalized, moderate
• K05.323 Chronic periodontitis, generalized, severe
• K05.329 Chronic periodontitis, generalized, unspecified severity
• K05.4 Periodontosis
• K05.5 Other periodontal diseases
• K05.6 Periodontal disease, unspecified (this code)