A99 diagnosis code · Billable category · FY2027
A99 Unspecified viral hemorrhagic fever
- Billable
- CC
- POA reported
A99 ICD-10 code: a billable diagnosis code in FY2027; the category has no subdivisions.
Where it sits
- Chapter 1 Certain infectious and parasitic diseases (A00-B99)
- A90-A99 Arthropod-borne viral fevers and viral hemorrhagic fevers (A90-A99)
- A99 Unspecified viral hemorrhagic fever
- CC / MCC
- CC
- MS-DRG
- 865-866
- HCC V28
- –
- POA
- Reported
- Code Editor
- –
- Index entries
- 1
Instructions
Notes that also apply
Chapter 1 instructions (Includes 1, Excludes2 5, Use additional code 1): printed on the chapter 1 page.
Index entries
- Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor)›hemorrhagic (arthropod-borne) NOS›viral → A99
NCHS Alphabetic Index. Index first, then the Tabular List.
Medicare grouping and edits
| CC / MCC | CC |
|---|---|
| PDX exclusion list | 0152 (23 codes) |
| Appendix B | MDC 18 Infectious and Parasitic Diseases, Systemic or Unspecified Sites, MS-DRG 865-866 (Viral Illness with MCC…) |
| Code Editor | – |
| POA | Reported |
| HCC V28 | – |
CC as a secondary diagnosis, not when the principal diagnosis is on its PDX exclusion list.
CMS: MS-DRG v44 (Appendix B, C), MCE v44, POA list FY2027, 2027 Initial ICD-10-CM Mappings. What the rows mean.