ICD-10-CM 2027
ICD-10 code for enterovirus
Unspecified enterovirus as the cause of diseases classified elsewhere
From the official ICD-10-CM alphabetic index entry “Enterovirus, as cause of disease classified elsewhere”. Page updated September 29, 2026.
About coding enterovirus
The ICD-10-CM code for enterovirus is B97.10 (Unspecified enterovirus as the cause of diseases classified elsewhere). The official index lists 3 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on B97.10.
Within B97.1, choose B97.10 (Unspecified enterovirus as the cause of diseases classified elsewhere) only when documentation doesn't support a more specific option: coxsackievirus as the cause of diseases classified elsewhere (B97.11), echovirus as the cause of diseases classified elsewhere (B97.12) and other enterovirus as the cause of diseases classified elsewhere (B97.19).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 865 (Viral Illness with MCC, relative weight 1.3485) and DRG 866 (Viral Illness without MCC, relative weight 0.8692), in MDC 18 (Infectious and Parasitic Diseases, Systemic or Unspecified Sites), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
More specific enterovirus codes (official index)
Common questions about enterovirus ICD-10 codes
What is the ICD-10 code for enterovirus?
- B97.10 — Unspecified enterovirus as the cause of diseases classified elsewhere. More specific codes apply when the documentation supports them: B97.11, B97.12, B97.19.
What is the ICD-10 code for coxsackievirus enterovirus?
- B97.11 — Coxsackievirus as the cause of diseases classified elsewhere.
What is the ICD-10 code for echovirus enterovirus?
- B97.12 — Echovirus as the cause of diseases classified elsewhere.
What is the ICD-10 code for other specified enterovirus?
- B97.19 — Other enterovirus as the cause of diseases classified elsewhere.
Is B97.10 billable?
- Yes. B97.10 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can B97.10 be used as a principal diagnosis?
- No. It is not acceptable as the principal diagnosis for an inpatient stay; it may be reported as a secondary diagnosis.
Is B97.10 a CC or MCC?
- No. B97.10 is neither a CC nor an MCC under MS-DRG v44.0.