Non-specific code 2011 ICD-9-CM Diagnosis Code 493.9
Asthma unspecified
  • There are 3 ICD-9-CM codes below 493.9 that define this diagnosis in greater detail. Do not use this code on a reimbursement claim.
  • You are viewing the 2011 version of ICD-9-CM 493.9.
  • More recent version(s) of ICD-9-CM 493.9: 2012 2013 2014.
Applies To
  • Asthma (bronchial) (allergic NOS)
  • Bronchitis:
    • allergic
    • asthmatic
ICD-9-CM Volume 2 Index entries containing back-references to 493.9:
  • Asthma, asthmatic (bronchial) (catarrh) (spasmodic) 493.9
    • with
      • chronic obstructive pulmonary disease (COPD) 493.2
      • hay fever 493.0
      • rhinitis, allergic 493.0
    • allergic 493.9
      • stated cause (external allergen) 493.0
    • cardiac (see also Failure, ventricular, left) 428.1
    • cardiobronchial (see also Failure, ventricular, left) 428.1
    • cardiorenal (see also Hypertension, cardiorenal) 404.90
    • croup 493.9
    • due to
      • detergent 507.8
      • inhalation of fumes 506.3
      • internal immunological process 493.0
    • endogenous (intrinsic) 493.1
    • exercise induced bronchospasm 493.81
    • exogenous (cosmetics) (dander or dust) (drugs) (dust) (feathers) (food) (hay) (platinum) (pollen) 493.0
    • heart (see also Failure, ventricular, left) 428.1
    • Millar's (laryngismus stridulus) 478.75
    • millstone makers' 502
    • Monday morning 504
    • New Orleans (epidemic) 493.0
    • pneumoconiotic (occupational) NEC 505
    • psychogenic 316 [493.9]
    • pulmonary eosinophilic 518.3
    • Rostan's (see also Failure, ventricular, left) 428.1
    • sandblasters' 502
    • stonemasons' 502
    • tuberculous (see also Tuberculosis, pulmonary) 011.9
    • Wichmann's (laryngismus stridulus) 478.75
  • Bronchitis (diffuse) (hypostatic) (infectious) (inflammatory) (simple) 490
    • allergic (acute) (see also Asthma) 493.9
    • summer (see also Asthma) 493.9
  • Catarrh, catarrhal (inflammation) (see also condition) 460
    • asthma, asthmatic (see also Asthma) 493.9
    • suffocating (see also Asthma) 493.9
  • Croup, croupous (acute) (angina) (catarrhal) (infective) (inflammatory) (laryngeal) (membranous) (nondiphtheritic) (pseudomembranous) 464.4
    • asthmatic (see also Asthma) 493.9
  • Dyspnea (nocturnal) (paroxysmal) 786.09
    • asthmatic (bronchial) (see also Asthma) 493.9
      • with bronchitis (see also Asthma) 493.9
      • cardiac (see also Failure, ventricular, left) 428.1
  • Obstruction, obstructed, obstructive
    • airway NEC 519.8
      • with
        • allergic alveolitis NEC 495.9
        • asthma NEC (see also Asthma) 493.9
        • bronchiectasis 494.0
          • with acute exacerbation 494.1
        • bronchitis (see also Bronchitis, with, obstruction) 491.20
        • emphysema NEC 492.8
      • chronic 496
        • with
          • allergic alveolitis NEC 495.5
          • asthma NEC (see also Asthma) 493.2
          • bronchiectasis 494.0
            • with acute exacerbation 494.1
          • bronchitis (chronic) (see also Bronchitis, chronic, obstructive) 491.20
          • emphysema NEC 492.8
      • due to
  • Status (post)
    • asthmaticus (see also Asthma) 493.9
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 493.9 is one of thousands of ICD-9-CM codes used in healthcare. Although ICD-9-CM and CPT codes are largely numeric, they differ in that CPT codes describe medical procedures and services. Can't find a code? Start at the root of ICD-9-CM, check the 2011 ICD-9-CM Index or use the search engine at the top of this page to lookup any code.