J09.X9 Influenza due to identified novel influenza A virus with other manifestations

Billable ICD-10-CM code, FY2026.

Applicable to

• Influenza due to identified novel influenza A virus with encephalopathy
• Influenza due to identified novel influenza A virus with myocarditis
• Influenza due to identified novel influenza A virus with otitis media

Use additional code

• code to identify manifestation

Applies from J09 Influenza due to certain identified influenza viruses

Excludes1 (never code together)

• influenza A/H1N1 (J10.-)
• influenza due to other identified influenza virus (J10.-)
• influenza due to unidentified influenza virus (J11.-)
• seasonal influenza due to other identified influenza virus (J10.-)
• seasonal influenza due to unidentified influenza virus (J11.-)

Applies from J09.X Influenza due to identified novel influenza A virus

Applicable to

• Avian influenza
• Bird influenza
• Influenza A/H5N1
• Influenza of other animal origin, not bird or swine
• Swine influenza virus (viruses that normally cause infections in pigs)

MS-DRG index

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

Approximate ICD-9-CM (GEMs)

• 488.09 Influenza due to identified avian influenza virus with other manifestations (approximate)
• 488.19 Influenza due to identified 2009 H1N1 influenza virus with other manifestations (approximate)
• 488.89 Influenza due to identified novel influenza A virus with other manifestations (approximate)

Code annotations containing back-references to J09.X9

Back-references to J09.X9

• Type 1 Excludes: G94 Other disorders of brain in diseases classified elsewhere ("encephalopathy in influenza (J09.X9, J10.81, J11.81)")
• Type 1 Excludes: H67 Otitis media in diseases classified elsewhere ("influenza (J09.X9, J10.83, J11.83)")
• Type 1 Excludes: I41 Myocarditis in diseases classified elsewhere ("influenzal (J09.X9, J10.82, J11.82)")

Back-references to J09.X

• Type 1 Excludes: J10 Influenza due to other identified influenza virus ("influenza due to avian influenza virus (J09.X-)")
• Type 1 Excludes: J10 Influenza due to other identified influenza virus ("influenza due to swine flu (J09.X-)")

Diagnosis Index entries for J09.X9

• Influenza (bronchial) (epidemic) (respiratory (upper)) (unidentified influenza virus) › due to › identified novel influenza A virus › with › encephalopathy
• Influenza (bronchial) (epidemic) (respiratory (upper)) (unidentified influenza virus) › due to › identified novel influenza A virus › with › myocarditis
• Influenza (bronchial) (epidemic) (respiratory (upper)) (unidentified influenza virus) › due to › identified novel influenza A virus › with › otitis media
• Influenza (bronchial) (epidemic) (respiratory (upper)) (unidentified influenza virus) › due to › identified novel influenza A virus › with › specified manifestation NEC

Nearby codes

• J09 Influenza due to certain identified influenza viruses
• J09.X Influenza due to identified novel influenza A virus
• J09.X1 Influenza due to identified novel influenza A virus with pneumonia
• J09.X2 Influenza due to identified novel influenza A virus with other respiratory manifestations
• J09.X3 Influenza due to identified novel influenza A virus with gastrointestinal manifestations
• J09.X9 Influenza due to identified novel influenza A virus with other manifestations (this code)