A20: Plague
Codes under A20 (Plague). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| A20.0 | Bubonic plague | ✓ |
| A20.0 | Bubonic plague | ✓ |
| A20.1 | Cellulocutaneous plague | ✓ |
| A20.1 | Cellulocutaneous plague | ✓ |
| A20.2 | Pneumonic plague | ✓ |
| A20.2 | Pneumonic plague | ✓ |
| A20.3 | Plague meningitis | ✓ |
| A20.3 | Plague meningitis | ✓ |
| A20.7 | Septicemic plague | ✓ |
| A20.7 | Septicemic plague | ✓ |
| A20.8 | Other forms of plague | ✓ |
| A20.8 | Other forms of plague | ✓ |
| A20.9 | Plague, unspecified | ✓ |
| A20.9 | Plague, unspecified | ✓ |
Frequently asked questions
What is ICD-10-CM code A20?
A20 is an ICD-10-CM category covering Plague. It contains 14 more specific diagnosis codes, 14 of which are billable.
Is A20 a billable code?
No — A20 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 A20.0 — Bubonic plague). 14 of the 14 codes under A20 are billable.
What codes fall under A20?
A20 includes A20.0, A20.0, A20.1, A20.1, A20.2, plus 9 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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