ICD-10 Codes for Documenting Asthma

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ICD-10 Codes for Documenting ASTHMA
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According to the American Academy of Allergy
Asthma Immunology (AAAAI), asthma is a chronic
disease involving the airways in the lungs.
Airways are always inflamed for those with this
condition. Specialists such as allergists or
immunologists diagnosing and treating asthma can
rely on medical coding outsourcing to meet the
complex coding tasks.
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Conditions to be included while documenting asthma
Cause (exercise-induced, cough variant, related
to smoking, chemical or particular cause,
occupational)
Severity (mild persistent, moderate persistent,
severe persistent)
Temporal Factors (acute, chronic, intermittent,
persistent, status asthmaticus, acute
exacerbation)
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Get Familiar with ICD 10 codes
ICD-10-CM combines both intrinsic and extrinsic
into one category
J45.2 Mild intermittent asthma J45.3 Mild
persistent asthma
Mild asthma
J45.4 Moderate persistent asthma J45.5 Severe
persistent asthma
Moderate and severe asthma
Condition that cannot be
identified as mild, moderate or
severe
J45.99 Other asthma Or J45.90 Unspecified asthma
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Sub-categories
Three further sub-categories are - uncomplicated,
with acute exacerbation and status asthmaticus.
Mild intermittent asthma, uncomplicated
J45.20
Uncomplicated
Severe persistent asthma, uncomplicated
J45.50
Unspecified asthma, uncomplicated
J45.909
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Mild intermittent asthma with (acute)  exacerbatio
n
J45.21
Mild persistent asthma with (acute)  exacerbation
 J45.31
Acute Exacerbation
Moderate persistent asthma with (acute)
exacerbation
J45.41
Severe persistent asthma with (acute) exacerbation
J45.51
Unspecified asthma with (acute) exacerbation
J45.901
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Mild intermittent asthma with status asthmaticus
J45.22
Mild persistent asthma with status asthmaticus
J45.32
Status Asthmaticus
Mild persistent asthma with status asthmaticus
J45.42
Severe persistent asthma with status asthmaticus
J45.52
Unspecified asthma with status asthmaticus
J45.902
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Cause
While documenting the cause of asthma, common
codes used include
Z77.22 Contact with and (suspected) exposure to
environmental tobacco smoke (acute) (chronic)
F17.228 Nicotine dependence, chewing tobacco,
with other nicotine-induced disorders

P96.81 Exposure to (parental) (environmental)
tobacco smoke in the perinatal period
F17.298 Nicotine dependence, other tobacco
product, with other nicotine-induced disorders

Z87.891 Personal history of nicotine dependence
Z72.0 Tobacco use
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Codes that are exceptions from a diagnosis as J45
asthma
Hypersensitivity pneumonitis due to other organic
dusts (wood asthma)
J67.8
Pneumonitis due to inhalation of other solids and
liquids (detergent asthma)
J69.8
Pulmonary eosinophilia, not elsewhere classified
(eosinophilic asthma)
J82
J60
Coal worker's pneumoconiosis (miner's asthma)
R06.2
Wheezing
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Other key things medical coders must note include

• These types of asthma cannot be combined with a
  J45 code
• because the conditions cannot coexist.
• Chronic obstructive asthma (J44.9) can be
  included in the submitted code because the
  condition can coexist with a J45 code.

To code asthma that comes with a wide variety of
potential choices, it is crucial for coding
specialists in hospitals and medical billing
companies to have a clear idea of the structure
and organization of the ICD-10 code set.
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