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ICD-10-CM 2027 diagnosis code

B97Viral agents as the cause of diseases classified elsewhere

Not billable — use a more specific code

B97 is a header code, so it can't be reported by itself. Choose one of the 9 more specific codes beneath it.

Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS, effective October 1, 2026. Updated September 29, 2026. About our data

About B97

B97 is the ICD-10-CM diagnosis code for viral agents as the cause of diseases classified elsewhere. It belongs to block B95-B97 (bacterial and viral infectious agents) and chapter 1 (certain infectious and parasitic diseases). It is a header code, so it can't be reported by itself; one of its 9 subcodes must be used instead.

To report this condition, pick the subcode that matches the documentation: B97.0 (elsewhere), B97.1 (elsewhere), B97.2 (elsewhere), B97.3 (elsewhere), B97.4 (elsewhere), B97.5 (elsewhere), B97.6 (elsewhere), B97.7 (elsewhere) and 1 more.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Specific codes under B97

Notes that apply from higher levels

Instructions written at a parent level also apply to B97.

Broader instructions also apply from B95-B97 Bacterial and viral infectious agents and Chapter 1: Certain infectious and parasitic diseases.

Codes whose notes reference B97

  • B34Excludes1
  • E06.0Use additional code
  • G06Use additional code
  • H65Use additional code
  • I30.1Use additional code
  • I33.0Use additional code
  • I40.0Use additional code
  • J01Use additional code
  • J02.8Use additional code
  • J03.8Use additional code
  • J04Use additional code
  • J05Use additional code
  • J06.9Use additional code
  • J32Use additional code
  • J36Use additional code
  • J37Use additional code
  • J85Use additional code
  • J86Use additional code
  • J95.851Use additional code
  • K65Use additional code
  • K6A.0Use additional code
  • M46.3Use additional code
  • M60.0Use additional code
  • M86Use additional code
  • N10Use additional code
  • N11Use additional code
  • N13.6Use additional code
  • N30Use additional code
  • N34Use additional code
  • N39.0Use additional code
  • N41Use additional code
  • N43.1Use additional code
  • N45Use additional code
  • N47.6Use additional code
  • N47.7Use additional code
  • N48.1Use additional code
  • N48.2Use additional code
  • N49Use additional code
  • N70Use additional code
  • N71Use additional code
  • N72Use additional code
  • N73Use additional code
  • N76Use additional code
  • O03.37Use additional code
  • O03.87Use additional code
  • O04.87Use additional code
  • O07.37Use additional code
  • O08.82Use additional code
  • O75.3Use additional code
  • O85Use additional code
  • O86Use additional code
  • P23.0Use additional code

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about B97

Is B97 billable?

No. B97 is a header code. Report one of its more specific subcodes instead.