Sequelae of infectious and parasitic diseases (B90-B94) ICD-10-CM
The B90–B94 section covers sequelae of infectious and parasitic diseases with 14 ICD-10-CM diagnosis codes, of which 12 are billable in fiscal year 2027. The section is organized into the 4 code ranges listed below.
Code First
Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions, the ICD-10-CM has a coding convention that requires the underlying condition be sequenced first followed by the manifestation. Wherever such a combination exists, there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation.
- condition resulting from (sequela) the infectious or parasitic disease
Code Ranges in This Section 4 ranges · 14 codes
The info icon previews the code ranges inside each row and its instructional notations from the official Tabular List.
About the B90–B94 Code Range
Sequelae are conditions that result from infectious or parasitic diseases. These categories distinguish the disease associated with the resulting condition.
B90 covers tuberculosis and separates its codes by the body area affected, including the nervous system, genitourinary system, bones, joints, and respiratory system. It also includes other organs and unspecified tuberculosis. B91 covers poliomyelitis, and B92 covers leprosy.
B94 covers other or unspecified infectious and parasitic diseases. Its subdivisions name trachoma, viral encephalitis, and viral hepatitis, or distinguish other specified diseases from unspecified disease.
Questions About This Page
How many codes are in the B90-B94 range?
The B90-B94 range contains 14 ICD-10-CM diagnosis codes in FY 2027. 12 of them are billable, and the rest are category headers that organize the section.
What conditions does B90-B94 cover?
The range covers sequelae of infectious and parasitic diseases. The code ranges listed above break it into groups of related conditions, and each one links to its own page with the full code list.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
