Coding experts Alicia and Laureen from CCO review the new 2025 ICD-10-CM code changes.
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1E31 Influenza due to identified zoonotic or pandemic influenza virus International Classification of Diseases for Mortality and Morbidity Statistics, 11th Revision, v2024-01 Influenza, caused by influenza virus strains of special epidemiological importance with an animal-human or inter-human transmission.
For use of this category, reference must be made to the guidelines of the Global Influenza Programme (GIP, www.who.int/influenza/) of WHO.
exclusions coding note Influenza caused by influenza virus strains of special epidemiological importance with an animal-human or inter-human transmission limited to the inclusions
postcoordination Add Stem and/or Extension codes to form a cluster code which adds detail to the condition.
Infectious agent - multiple selections are allowed [select] XN5SG Influenza virus – XN8WJ Influenza A virus –– XN297 Influenza A H1N1 virus –– XN4TT Influenza A H5N1 virus –– XN7JR Influenza A H5N6 virus –– XN35G Influenza A H7N9 virus –– XN2J2 Influenza A H1 virus –– XN9Z9 Influenza A H1N1v virus –– XN3VG Influenza A H1N2v virus –– XN9SG Influenza A H1N1 pdm2009 virus –– XN3UJ Influenza A H1pdm09N2 2:6 reassortant influenza virus –– XN02Z Swine influenza A H1N1 virus –– XN16M Influenza A H1N2 variant –– XN79W Influenza A H2N2 virus –– XN8WA Influenza A H3 virus –– XN6WE Influenza A H3N2 virus –– XN476 Swine influenza A H3N2 virus –– XN3UU Influenza A H3N2 Panama/2007/99 virus –– XN9HE Influenza A H3N2 Moscow/10/99 virus –– XN9FE Influenza A H3N2v virus –– XN81W Equine influenza A H3N8 virus –– XN6MR Influenza A H5 virus –– XN5DQ Influenza A H5N2 virus –– XN6MY Influenza A H5N8 virus –– XN0AS Influenza A H6N1 virus –– XN9GE Influenza A H7N2 virus –– XN2SA Influenza A H7N2 variant –– XN8Q3 Influenza A H7N3 virus –– XN5WA Influenza A H7N4 virus –– XN8YT Influenza A H7N7 virus –– XN71C Influenza A H9 virus –– XN412 Influenza A H9N2 virus –– XN5SY Influenza A H10N3 virus –– XN66Y Influenza A H10N7 virus –– XN0MW Influenza A H10N8 virus – XN8SG Influenza B virus – XN8U3 Influenza C virus – XN67Q Influenza D virus Has manifestation - multiple selections are allowed [select] 1C80 Viral encephalitis, not elsewhere classified – 1D02.1 Viral myelitis – 1D02.1 Viral myelitis 1G40 Sepsis without septic shock 1G41 Sepsis with septic shock – 8A41.0 Transverse myelitis –– AA80 Acute serous or mucoid otitis media –– AA81 Acute nonserous nonsuppurative otitis media –– AA82 Chronic serous or mucoid otitis media –– AA83 Noninfected otitis media with effusion –– AA8Z Nonsuppurative otitis media, unspecified –– AA90 Acute suppurative otitis media –– AA91 Chronic suppurative otitis media ––– AA91.0 Chronic tubotympanic suppurative otitis media ––– AA91.1 Chronic atticoantral suppurative otitis media ––– AA91.2 Other chronic suppurative otitis media ––– AA91.Z Chronic suppurative otitis media, unspecified –– AA9Z Suppurative otitis media, unspecified whether acute or chronic – AB00 Acute otitis media – AB01 Chronic otitis media – AB0Y Other specified otitis media – AB0Z Otitis media, unspecified – AB0Y Other specified otitis media – BC42.1 Infectious myocarditis CA00 Acute nasopharyngitis CA01 Acute sinusitis CA02 Acute pharyngitis – CA02.0 Acute pharyngitis due to other bacteria – CA02.1 Acute viral pharyngitis – CA02.Y Other specified acute pharyngitis – CA02.Z Acute pharyngitis, unspecified –– CA02.10 Pharyngitis due to Adenovirus –– CA02.1Y Other specified acute viral pharyngitis –– CA02.1Z Acute viral pharyngitis, unspecified CA03 Acute tonsillitis – CA03.0 Streptococcal tonsillitis – CA03.Y Other specified acute tonsillitis – CA03.Z Acute tonsillitis, unspecified CA04 Acute laryngopharyngitis CA05 Acute laryngitis or tracheitis – CA05.0 Acute laryngitis – CA05.1 Acute tracheitis – CA05.2 Acute laryngotracheitis CA06 Acute obstructive laryngitis or epiglottitis – CA06.0 Acute obstructive laryngitis – CA06.1 Acute epiglottitis – CA06.Z Acute obstructive laryngitis or epiglottitis, unspecified CA07 Acute upper respiratory infections of multiple and unspecified sites – CA07.0 Acute upper respiratory infection, site unspecified – CA07.1 Acute upper respiratory infections of multiple sites CA08 Vasomotor or allergic rhinitis – CA08.0 Allergic rhinitis – CA08.1 Non-allergic rhinitis – CA08.2 Mixed rhinitis – CA08.3 Vasomotor rhinitis – CA08.Y Mixed allergic and non-allergic rhinitis – CA08.Z Rhinitis, unspecified whether allergic or nonallergic –– CA08.00 Allergic rhinitis due to pollen –– CA08.01 Allergic rhinitis due to other seasonal allergens –– CA08.02 Allergic rhinitis due to house dust mite –– CA08.03 Other allergic rhinitis –– CA08.0Z Allergic rhinitis, unspecified –– CA08.10 Non-allergic rhinitis with eosinophils –– CA08.1Y Other specified non-allergic rhinitis –– CA08.1Z Non-allergic rhinitis, unspecified CA09 Chronic rhinitis, nasopharyngitis or pharyngitis – CA09.0 Chronic rhinitis – CA09.1 Chronic nasopharyngitis – CA09.2 Chronic pharyngitis CA0A Chronic rhinosinusitis – CA0A.0 Samter syndrome – CA0A.Y Other specified chronic rhinosinusitis – CA0A.Z Chronic rhinosinusitis, unspecified CA0B Silent sinus syndrome CA0C Cyst or mucocele of nose or nasal sinus CA0D Deviated nasal septum CA0E Hypertrophy of nasal turbinates CA0F Chronic diseases of tonsils or adenoids – CA0F.0 Hypertrophy of tonsils – CA0F.1 Hypertrophy of adenoids – CA0F.3 Hypertrophy of tonsils with hypertrophy of adenoids – CA0F.Y Other specified chronic diseases of tonsils or adenoids – CA0F.Z Chronic diseases of tonsils or adenoids, unspecified CA0G Chronic laryngitis or laryngotracheitis CA0H Diseases of vocal cords or larynx, not elsewhere classified – CA0H.0 Paralysis of vocal cords or larynx – CA0H.1 Polyp of vocal cord or larynx – CA0H.2 Nodules of vocal cords – CA0H.3 Oedema of larynx – CA0H.4 Laryngeal spasm – CA0H.5 Stenosis of larynx – CA0H.Y Other specified diseases of vocal cords or larynx, not elsewhere classified – CA0H.Z Diseases of vocal cords or larynx, not elsewhere classified, unspecified CA0J Nasal polyp – CA0J.0 Polypoid sinus degeneration – CA0J.Y Other specified nasal polyp – CA0J.Z Nasal polyp, unspecified CA0K Abscess of upper respiratory tract – CA0K.0 Retropharyngeal or parapharyngeal abscess – CA0K.1 Peritonsillar abscess – CA0K.Y Other specified abscess of upper respiratory tract – CA0K.Z Abscess of upper respiratory tract, unspecified CA0Y Other specified upper respiratory tract disorders CA0Z Upper respiratory tract disorders, unspecified CA27 Tracheobronchitis – CA27.0 Tracheobronchopathia osteochondroplastica – CA27.1 Tracheobronchomegaly – CA27.Y Other specified tracheobronchitis – CA27.Z Tracheobronchitis, unspecified CA40 Pneumonia – CA40.0 Bacterial pneumonia – CA40.1 Viral pneumonia – CA40.2 Fungal pneumonia – CA40.Y Other specified pneumonia – CA40.Z Pneumonia, organism unspecified –– CA40.00 Pneumonia due to Chlamydophila pneumoniae –– CA40.01 Pneumonia due to Escherichia coli –– CA40.02 Pneumonia due to Haemophilus influenzae –– CA40.03 Pneumonia due to Klebsiella pneumoniae –– CA40.04 Pneumonia due to Mycoplasma pneumoniae –– CA40.05 Pneumonia due to Pseudomonas aeruginosa –– CA40.06 Pneumonia due to Staphylococcus –– CA40.07 Pneumonia due to Streptococcus pneumoniae –– CA40.08 Pneumonia due to beta-haemolytic streptococcus –– CA40.0Y Pneumonia due to other specified bacteria –– CA40.0Z Bacterial pneumonia, unspecified –– CA40.10 Pneumonia due to Adenovirus –– CA40.11 Pneumonia due to Respiratory syncytial virus –– CA40.12 Pneumonia due to parainfluenza virus –– CA40.13 Pneumonia due to Human metapneumovirus –– CA40.1Y Pneumonia due to other specified virus –– CA40.1Z Viral pneumonia, unspecified –– CA40.20 Pneumonia due to pneumocystis –– CA40.2Y Other specified fungal pneumonia –– CA40.2Z Fungal pneumonia, unspecified CA42 Acute bronchitis – CA42.0 Acute bronchitis due to Streptococcus – CA42.1 Acute bronchitis due to Rhinovirus – CA42.2 Acute bronchitis due to Respiratory syncytial virus – CA42.3 Acute bronchitis due to Parainfluenza virus – CA42.4 Acute bronchitis due to Haemophilus influenzae – CA42.5 Acute bronchitis due to Coxsackievirus – CA42.Y Other specified acute bronchitis – CA42.Z Acute bronchitis, unspecified – FB30 Infectious myositis
synonyms Influenza due to identified zoonotic or pandemic influenza virus Influenza with pneumonia, zoonotic or pandemic influenza virus identified Influenza with respiratory manifestations, zoonotic or pandemic influenza virus identified Acute upper respiratory infection zoonotic or pandemic influenza virus identified Influenzal laryngitis zoonotic or pandemic influenza virus identified Influenzal pharyngitis zoonotic or pandemic influenza virus identified Influenzal pleural effusion zoonotic or pandemic influenza virus identified Influenza with certain manifestations, zoonotic or pandemic influenza virus identified Influenzal myocarditis, avian influenza virus identified Influenzal acute myocarditis zoonotic or pandemic influenza virus identified Influenzal acute myocarditis, avian influenza virus identified Encephalopathy due to influenza zoonotic or pandemic influenza virus identified Encephalitis in influenza due to certain identified influenza virus Influenzal gastroenteritis zoonotic or pandemic influenza virus identified Myelitis due to Influenza A virus Influenza due to infection with Influenza A/H7N9 virus Influenza due to infection with Influenza A/H1N1 virus Swine Flu Influenza A/H1N1 pandemic 2009 Influenza A/H1N1 pandemic 2009 swine flu Influenza due to infection with Influenza A/H5N1 virus Avian influenza Influenza A/ H5N1 epidemic Influenza A/ H5N1 epidemic avian influenza influenza due to identified avian influenza virus Otitis media in influenza with zoonotic or pandemic influenza virus identified
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