B04 Monkeypox

Billable ICD-10-CM code, FY2026. Acts as a Complication or Comorbidity (CC) as a secondary diagnosis.

Applicable to

• Mpox

Applies from B04 Monkeypox

Applicable to

• Mpox

MS-DRG index

Defines the logic of DRG(s) 865-866 in MDC 18.

Approximate ICD-9-CM (GEMs)

• 059.01 Monkeypox

Code annotations containing back-references to B04

Back-references to B04

• Type 2 Excludes: B08.0 Other orthopoxvirus infections ("monkeypox (B04)")
• Code First: H67 Otitis media in diseases classified elsewhere ("viral disease NEC (B00-B34)")

Back-references to B04

• Type 2 Excludes: B08.0 Other orthopoxvirus infections ("monkeypox (B04)")
• Code First: H67 Otitis media in diseases classified elsewhere ("viral disease NEC (B00-B34)")

Diagnosis Index entries for B04

• Monkeypox
• Mpox

Nearby codes

• B04 Monkeypox (this code)