ICD-10 Code K05.1 – Chronic Gingivitis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K05.1 – Chronic gingivitis
What it is
K05.1 identifies chronic inflammation of the gingiva, or gums. Use it when the record documents a persistent gingival condition rather than an acute or unspecified gum disorder.
Clinical signs
Common findings include red, swollen, or tender gums, along with bleeding on brushing or probing. Clinical features vary; refer to documentation.
When to use this code
Use K05.1 when the clinician documents chronic gingivitis, including longstanding gingival inflammation in the chart. It is appropriate when the note clearly distinguishes this condition from periodontitis or an acute gum infection. If the documentation is vague, check documentation before assigning the code.
Do not use for
Do not use this code for periodontitis, acute gingivitis, or gingival conditions that are not documented as chronic. If the record only says “gum disease,” check documentation.
Coding tip
Confirm the provider specifically documents “chronic gingivitis” before coding K05.1.