FY2027 ICD-10-CM reference
A83.6: Rocio virus disease
By the HCC Buddy Coding Team
The official ICD-10-CM descriptor is Rocio virus disease. The FY2027 annual edition starts October 1, 2026. Check the edition that applies to the encounter or inpatient discharge, including any April update.
Billable code. Verified against the official FY2027 order file.
FY2027 Tabular instructions
Instructions below include applicable chapter, section and parent-code notes. Each note identifies where it appears in the official source.
Includes
diseases generally recognized as communicable or transmissible
Source: A00-B99 (chapter, inherited).
Instructional note
code to identify resistance to antimicrobial drugs (Z16.-)
Source: A00-B99 (chapter, inherited).
Excludes2
carrier or suspected carrier of infectious disease (Z22.-)
Source: A00-B99 (chapter, inherited).
Excludes2
certain localized infections - see body system-related chapters
Source: A00-B99 (chapter, inherited).
Excludes2
infectious and parasitic diseases complicating pregnancy, childbirth and the puerperium (O98.-)
Source: A00-B99 (chapter, inherited).
Excludes2
infectious and parasitic diseases specific to the perinatal period (P35-P39)
Source: A00-B99 (chapter, inherited).
Excludes2
influenza and other acute respiratory infections (J00-J22)
Source: A00-B99 (chapter, inherited).
Excludes1
postpolio syndrome (G14)
Source: A80-A89 (section, inherited).
Excludes1
sequelae of poliomyelitis (B91)
Source: A80-A89 (section, inherited).
Excludes1
sequelae of viral encephalitis (B94.1)
Source: A80-A89 (section, inherited).
Includes
mosquito-borne viral meningoencephalitis
Source: A83 (category, inherited).
Excludes2
Venezuelan equine encephalitis (A92.2)
Source: A83 (category, inherited).
Excludes2
West Nile fever (A92.3-)
Source: A83 (category, inherited).
Excludes2
West Nile virus (A92.3-)
Source: A83 (category, inherited).
Compare the FY2027 additions, removals and billable-status changes
What does A83.6 mean in FY2027?
The official ICD-10-CM descriptor is Rocio virus disease. The FY2027 annual edition starts October 1, 2026. Check the edition that applies to the encounter or inpatient discharge, including any April update.
Is A83.6 billable in FY2027?
The FY2027 order file marks A83.6 as billable. Check the complete Tabular instructions and documentation before assigning it.
Does A83.6 map to an HCC?
A83.6 has no CMS-HCC V28 category in the CMS 2027 Initial ICD-10-CM Mappings (payment year 2027, 2026 dates of service). ESRD, RxHCC, PACE and HHS-HCC mappings are still pending verification for FY2027.
Source: CMS FY2027 ICD-10-CM order file. Read the FY2027 Official Guidelines.
Review the FY2026 April edition