Table 1.

CDC Syndrome Codes and Definitions

SyndromeDefinitionICD-9 codes
CDC = Centers for Disease Control and Prevention; ICD-9 = International Classification of Diseases, Ninth Revision.
Note: CDC Web link with syndrome definitions: http://www.bt.cdc.gov/surveillance/syndromedef/index.asp.
Botulism-likeParalytic conditions consistent with botulism; or other symptoms consistent with botulism: diplopia, dry mouth, dysphagia, difficulty focusing to a near point005.1, 344.04, 344.09,344.2, 344.89,344.9, 351.9,352.6, 352.9,357.0, 368.2,374.30, 378.51,378.52, 378.53,378.54, 378.55
Hemorrhagic illnessSpecific diagnosis of any virus that causes viral hemorrhagic fever (VHF), such as yellow fever, Lassa, or Ebola; or any acute condition with multiple organ involvement or acute blood abnormalities that may be consistent with exposure to a virus that causes VHF287.1, 287.2, 287.8, 287.9, 511.8, 790.01, 790.92
LymphadenitisAcute regional lymph node swelling and/or infection (painful bubo), particularly in groin, axilla, or neck020.0, 021.0, 021.3, 075, 289.3, 683, 785.6
Localized cutaneous lesionCutaneous lesion, ulcer, or localized edema consistent with cutaneous anthrax or tularemia.020.0, 020.1, 021.0, 022.0, 680.0, 680.1, 680.2, 680.3, 680.4, 680.5, 680.6, 680.7, 680.8, 707.11, 707.12, 707.13, 707.14, 707.19
GastrointestinalAcute upper and/or lower gastrointestinal (GI) tract infection; or acute nonspecific symptoms of GI distress such as nausea, vomiting, or diarrhea005.89, 005.9, 008.49, 008.5, 008.69, 008.8, 009.0, 009.1, 009.2, 009.3, 022.2, 078.82, 535.00, 535.01, 535.40, 535.41, 535.50, 535.51, 535.60, 535.61, 536.2, 555.0, 555.1, 555.2, 558.2, 558.9, 569.9, 787.01, 787.02, 787.03, 787.3, 787.91
RespiratorySpecific diagnosis of any acute infection of the upper and/or lower respiratory tract; or acute nonspecific diagnosis or symptoms of respiratory tract infection020.3, 020.4, 020.5, 021.2, 022.1, 460, 462, 463, 464.00, 464.01, 464.10, 464.11, 464.20, 464.21, 464.30, 464.31, 464.4, 464.50, 464.51, 465.0, 465.8, 465.9, 466.0, 466.11, 466.19, 478.9, 480.8, 480.9, 482.9, 483.8, 484.5, 484.8, 485, 486, 490, 511.0, 511.1, 511.8, 513.0, 513.1, 518.4, 518.84, 519.2, 519.3, 769, 786.00, 786.06, 786.1, 786.2, 786.3, 786.52, 799.1
NeurologicalAcute infection of the central nervous system (CNS) with a specific diagnosis, such as pneumococcal meningitis; or acute nonspecific symptoms of CNS infection047.8, 047.9, 048, 049.0, 049.9, 320.9, 321.2, 322.0, 322.1, 322.9, 323.8, 323.9, 348.3, 781.6
RashAcute condition having signs or symptoms consistent with smallpox; specific diagnosis of acute infectious rash (eg, chicken pox); or nonspecific infectious rash. Excludes noninfectious skin rashes, such as eczema, seborrheic dermatitis, and contact dermatitis050.0, 050.1, 050.2, 050.9, 051.0, 051.1, 052.7, 052.8, 052.9, 057.8, 057.9, 695.0, 695.1, 695.2, 695.89, 695.9
FeverAcute febrile illness of unspecified origin020.2, 020.8, 020.9, 021.8, 021.9, 022.3, 022.8, 022.9, 038.3, 038.40, 038.49, 038.8, 038.9, 079.89, 079.99, 780.31, 780.6, 790.7, 790.8,
Severe illness or death potentially due to infectious diseaseAcute onset of shock or coma from potentially infectious causes780.01, 785.50, 785.59, 798.1, 798.2, 798.9, 799.9