K05: Gingivitis and periodontal diseases
Codes under K05 (Gingivitis and periodontal diseases). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| K05.0 | Acute gingivitis | — |
| K05.0 | Acute gingivitis | — |
| K05.00 | Acute gingivitis, plaque induced | ✓ |
| K05.00 | Acute gingivitis, plaque induced | ✓ |
| K05.01 | Acute gingivitis, non-plaque induced | ✓ |
| K05.01 | Acute gingivitis, non-plaque induced | ✓ |
| K05.1 | Chronic gingivitis | — |
| K05.1 | Chronic gingivitis | — |
| K05.2 | Aggressive periodontitis | — |
| K05.2 | Aggressive periodontitis | — |
| K05.3 | Chronic periodontitis | — |
| K05.3 | Chronic periodontitis | — |
| K05.4 | Periodontosis | ✓ |
| K05.4 | Periodontosis | ✓ |
| K05.5 | Other periodontal diseases | ✓ |
| K05.5 | Other periodontal diseases | ✓ |
| K05.6 | Periodontal disease, unspecified | ✓ |
| K05.6 | Periodontal disease, unspecified | ✓ |
| K05.10 | Chronic gingivitis, plaque induced | ✓ |
| K05.10 | Chronic gingivitis, plaque induced | ✓ |
| K05.11 | Chronic gingivitis, non-plaque induced | ✓ |
| K05.11 | Chronic gingivitis, non-plaque induced | ✓ |
| K05.20 | Aggressive periodontitis, unspecified | ✓ |
| K05.20 | Aggressive periodontitis, unspecified | ✓ |
| K05.21 | Aggressive periodontitis, localized | — |
| K05.21 | Aggressive periodontitis, localized | — |
| K05.22 | Aggressive periodontitis, generalized | — |
| K05.22 | Aggressive periodontitis, generalized | — |
| K05.30 | Chronic periodontitis, unspecified | ✓ |
| K05.30 | Chronic periodontitis, unspecified | ✓ |
| K05.31 | Chronic periodontitis, localized | — |
| K05.31 | Chronic periodontitis, localized | — |
| K05.32 | Chronic periodontitis, generalized | — |
| K05.32 | Chronic periodontitis, generalized | — |
| K05.211 | Aggressive periodontitis, localized, slight | ✓ |
| K05.211 | Aggressive periodontitis, localized, slight | ✓ |
| K05.212 | Aggressive periodontitis, localized, moderate | ✓ |
| K05.212 | Aggressive periodontitis, localized, moderate | ✓ |
| K05.213 | Aggressive periodontitis, localized, severe | ✓ |
| K05.213 | Aggressive periodontitis, localized, severe | ✓ |
| K05.219 | Aggressive periodontitis, localized, unspecified severity | ✓ |
| K05.219 | Aggressive periodontitis, localized, unspecified severity | ✓ |
| K05.221 | Aggressive periodontitis, generalized, slight | ✓ |
| K05.221 | Aggressive periodontitis, generalized, slight | ✓ |
| K05.222 | Aggressive periodontitis, generalized, moderate | ✓ |
| K05.222 | Aggressive periodontitis, generalized, moderate | ✓ |
| K05.223 | Aggressive periodontitis, generalized, severe | ✓ |
| K05.223 | Aggressive periodontitis, generalized, severe | ✓ |
| K05.229 | Aggressive periodontitis, generalized, unspecified severity | ✓ |
| K05.229 | Aggressive periodontitis, generalized, unspecified severity | ✓ |
| K05.311 | Chronic periodontitis, localized, slight | ✓ |
| K05.311 | Chronic periodontitis, localized, slight | ✓ |
| K05.312 | Chronic periodontitis, localized, moderate | ✓ |
| K05.312 | Chronic periodontitis, localized, moderate | ✓ |
| K05.313 | Chronic periodontitis, localized, severe | ✓ |
| K05.313 | Chronic periodontitis, localized, severe | ✓ |
| K05.319 | Chronic periodontitis, localized, unspecified severity | ✓ |
| K05.319 | Chronic periodontitis, localized, unspecified severity | ✓ |
| K05.321 | Chronic periodontitis, generalized, slight | ✓ |
| K05.321 | Chronic periodontitis, generalized, slight | ✓ |
| K05.322 | Chronic periodontitis, generalized, moderate | ✓ |
| K05.322 | Chronic periodontitis, generalized, moderate | ✓ |
| K05.323 | Chronic periodontitis, generalized, severe | ✓ |
| K05.323 | Chronic periodontitis, generalized, severe | ✓ |
| K05.329 | Chronic periodontitis, generalized, unspecified severity | ✓ |
| K05.329 | Chronic periodontitis, generalized, unspecified severity | ✓ |
Frequently asked questions
What is ICD-10-CM code K05?
K05 is an ICD-10-CM category covering Gingivitis and periodontal diseases. It contains 66 more specific diagnosis codes, 50 of which are billable.
Is K05 a billable code?
No — K05 is a category header and isn't billable on its own. Code to the highest level of specificity using one of its subcodes (for example K05.0 — Acute gingivitis). 50 of the 66 codes under K05 are billable.
What codes fall under K05?
K05 includes K05.0, K05.0, K05.00, K05.00, K05.01, plus 61 more. See the full list with descriptions and billable status above.
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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
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