ICD-10 A20.8
Billable / Specific MCCOther forms of plague
About ICD-10-CM A20.8
ICD-10-CM code A20.8 represents Other forms of plague. This is a billable/specific code in the Infectious and Parasitic Diseases chapter (block A20). The 2026 edition of ICD-10-CM A20.8 became effective on October 1, 2025.
Coding Tips for A20.8
Specialist guidance from the PayerReady Medical Coding Team. Specificity warnings, HCC capture rules, sequencing notes.
A20.8 is designated MCC for MS-DRG grouping. On inpatient claims, this code can shift the DRG to the with-MCC variant when documented as a present-on-admission secondary diagnosis. Hospital CDI programs flag MCC opportunities during chart review. Failure to capture this code may leave 30 to 80 percent of the inpatient stay revenue unrealized.
Inclusion Terms / Approximate Synonyms
Clinical terms and conditions classified under A20.8. Per CMS ICD-10-CM Tabular 2026.
- Abortive plague
- Asymptomatic plague
- Pestis minor
Inpatient DRG Impact, MCC
codes Other forms of plague. As a Major Complication/Comorbidity (MCC), this can shift the DRG assignment to a higher-weighted category, substantial reimbursement impact.
Medicare LCD Coverage for A20.8
Local Coverage Determinations (LCDs) from CMS MACs that list A20.8 as a covered diagnosis.
This doesn't mean the code isn't covered, it means no MAC has issued a Local Coverage Determination naming this specific code. Coverage may still apply under National Coverage Determinations or general medical-necessity rules.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing A20.8.
Our payer policy database covers Aetna, Cigna, Anthem, BCBS, Humana, and Medicare Advantage plans, but A20.8 doesn't currently appear in any indexed policy. The code may still be covered under standard plan benefits.
CPT Codes Commonly Billed with A20.8
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
We don't have CPT pairings indexed for this specific code yet. Use the CPT search above to find common procedures, or check your payer's published medical policy for code-specific guidance.
Convert A20.8 to ICD-9-CM
Per CMS General Equivalence Mappings (GEMs), useful for legacy data review and historical claim analysis.
| ICD-10 | ICD-9 | Mapping Flags |
|---|---|---|
| A20.8 | 0208 | 10000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To A20.8
Other codes in section A20-A28 (Certain zoonotic bacterial diseases).
ICD-10 A20.8, Billing FAQ
Is ICD-10 code A20.8 billable? +
Yes, A20.8 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
What other names or terms map to A20.8? +
ICD-10 A20.8 includes: Abortive plague; Asymptomatic plague; Pestis minor.
Is A20.8 a CC or MCC for inpatient DRG? +
Yes, this code is designated as MCC. Documenting as a secondary diagnosis on inpatient claims can shift the DRG to a higher-weighted category.
What ICD-9 codes does A20.8 map to? +
Per CMS GEMs, A20.8 maps to ICD-9 codes: 0208. Useful for legacy data review and historical claim analysis.
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on May 31, 2026.
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