2011 ICD-9-CM Diagnosis Code 495.9 : Unspecified allergic alveolitis and pneumonitis

conditions in which inhalation of organic dusts results in hypersensitivity reactions at the alveolar level, associated with the production of precipitins.
Short description: Allerg alveol/pneum NOS.
ICD-9-CM 495.9 is a billable medical code that can be used to specify a diagnosis on a reimbursement claim.
You are viewing the 2011 version of ICD-9-CM 495.9.
More recent version(s) of ICD-9-CM 495.9: 2012 2013.

Applies To

Convert 495.9 to ICD-10-CM

ICD-9-CM Volume 2 Index entries containing back-references to 495.9:

Allergy, allergic (reaction) 995.3
- alveolitis (extrinsic) 495.9
  - due to
    - Aspergillus clavatus 495.4
    - cryptostroma corticale 495.6
    - organisms (fungal, thermophilic actinomycete, other) growing in ventilation (air conditioning systems) 495.7
  - specified type NEC 495.8
Alveolitis
- allergic (extrinsic) 495.9
  - due to organisms (fungal, thermophilic actinomycete, other) growing in ventilation (air conditioning systems) 495.7
  - specified type NEC 495.8
Disease, diseased - see also Syndrome
- lung NEC 518.89
  - black 500
  - congenital 748.60
  - cystic 518.89
    - congenital 748.4
  - fibroid (chronic) (see also Fibrosis, lung) 515
  - fluke 121.2
    - oriental 121.2
  - in
    - amyloidosis 277.39 [517.8]
    - polymyositis 710.4 [517.8]
    - sarcoidosis 135 [517.8]
    - Sjögren's syndrome 710.2 [517.8]
    - syphilis 095.1
    - systemic lupus erythematosus 710.0 [517.8]
    - systemic sclerosis 710.1 [517.2]
  - interstitial (chronic) 515
    - acute 136.3
  - nonspecific, chronic 496
  - obstructive (chronic) (COPD) 496
    - with
      - acute
        bronchitis 491.22
        exacerbation NEC 491.21
      - alveolitis, allergic (see also Alveolitis, allergic) 495.9
      - asthma (chronic) (obstructive) 493.2
      - bronchiectasis 494.0
        with acute exacerbation 494.1
      - bronchitis (chronic) 491.20
        with
        acute bronchitis 491.22
        exacerbation (acute) 491.21
      - decompensated 491.21
        with exacerbation 491.21
        with
        exacerbation (acute) 491.21
      - emphysema NEC 492.8
    - diffuse (with fibrosis) 496
  - polycystic 518.89
    - asthma (chronic) (obstructive) 493.2
    - congenital 748.4
  - purulent (cavitary) 513.0
  - restrictive 518.89
  - rheumatoid 714.81
    - diffuse interstitial 714.81
  - specified NEC 518.89
Hypersensitive, hypersensitiveness, hypersensitivity - see also Allergy
- pneumonitis NEC 495.9
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
    - bronchospasm 519.11
    - foreign body 934.9
    - inhalation of fumes or vapors 506.9
    - laryngospasm 478.75
Pneumonitis (acute) (primary) (see also Pneumonia) 486
- allergic 495.9
  - specified type NEC 495.8
- hypersensitivity 495.9

495.8

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496

ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 495.9 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.

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