Table 1

ICD-9-CM (International Classification of Diseases, Ninth Revision, Clinical Modification) codes used to identify disease categories

ICD-9-CM codeDiagnosis
Pneumonia
481Pneumococcal pneumonia
482Other bacterial pneumonia
482.0Pneumonia due to Klebsiella pneumoniae
482.1Pneumonia due to Pseudomonas
482.2Pneumonia due to Haemophilus influenzae
482.3Pneumonia due to Streptococcus
482.30Pneumonia due to Streptococcus, unspecified
482.31Pneumonia due to Streptococcus, Group A
482.32Pneumonia due to Streptococcus, Group B
482.39Pneumonia due to other Streptococcus
482.4Pneumonia due to Staphylococcus
482.40Pneumonia due to Staphylococcus, unspecified
482.41Pneumonia due to Staphylococcus aureus
482.49Pneumonia due to other Staphylococcus
482.8Pneumonia due to other specified bacteria
482.81Pneumonia due to Anaerobes
482.82Pneumonia due to Escherichia coli
482.83Pneumonia due to other Gram-negative bacteria
482.84Legionnaires’ disease
482.89Other specified bacteria
482.9Bacterial pneumonia, unspecified
483Pneumonia due to other specified organism
483.0Pneumonia due to Mycoplasma pneumoniae
483.1Pneumonia due to Chlamydia
483.8Pneumonia due to other specified organism
485Bronchopneumonia, organism unspecified
486Pneumonia, organism unspecified
Non-traumatic ICH
430Subarachnoid haemorrhage
431Intracerebral haemorrhage
432Other and unspecified intracerebral haemorrhage
432.0Non-traumatic extradural haemorrhage
432.1Subdural haemorrhage
432.9Unspecified ICH

  • ICH, intracranial haemorrhage.