J45.4

Moderate persistent asthma

Non-billable header

J45.4 is a non-billable header code. Use one of the more specific codes below.

Inclusion terms

Includes (from J45)

  • allergic (predominantly) asthma
  • allergic bronchitis NOS
  • allergic rhinitis with asthma
  • atopic asthma
  • extrinsic allergic asthma
  • hay fever with asthma
  • idiosyncratic asthma
  • intrinsic nonallergic asthma
  • nonallergic asthma
  • Note: When a respiratory condition is described as occurring in more than one site and is not specifically indexed, it should be classified to the lower anatomic site (e.g. tracheobronchitis to bronchitis in J40).

Excludes1

Not coded here — never report together with this code.

  • bronchitis due to chemicals, gases, fumes and vapors (J68.0) (from J45)
  • detergent asthma (J69.8) (from J45)
  • miner's asthma (J60) (from J45)
  • wheezing NOS (R06.2) (from J45)
  • wood asthma (J67.8) (from J45)

Excludes2

Not included here — may be reported together when both conditions exist.

  • certain conditions originating in the perinatal period (P04-P96) (from J45)
  • certain infectious and parasitic diseases (A00-B99) (from J45)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A) (from J45)
  • congenital malformations, deformations and chromosomal abnormalities (Q00-Q99) (from J45)
  • endocrine, nutritional and metabolic diseases (E00-E88) (from J45)
  • injury, poisoning and certain other consequences of external causes (S00-T88) (from J45)
  • neoplasms (C00-D49) (from J45)
  • smoke inhalation (T59.81-) (from J45)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94) (from J45)
  • cystic fibrosis (E84.-) (from J45)
  • asthma with chronic obstructive pulmonary disease (J44.89) (from J45)
  • chronic asthmatic (obstructive) bronchitis (J44.89) (from J45)
  • chronic obstructive asthma (J44.89) (from J45)
  • other specified chronic obstructive pulmonary disease (J44.89) (from J45)

Use additional code

Add a code to identify the following, if applicable.

  • code, where applicable, to identify: (from J45)
  • exposure to environmental tobacco smoke (Z77.22) (from J45)
  • exposure to tobacco smoke in the perinatal period (P96.81) (from J45)
  • history of tobacco dependence (Z87.891) (from J45)
  • occupational exposure to environmental tobacco smoke (Z57.31) (from J45)
  • tobacco dependence (F17.-) (from J45)
  • tobacco use (Z72.0) (from J45)
  • code to identify: (from J45)
  • eosinophilic asthma (J82.83) (from J45)
  • exposure to environmental tobacco smoke (Z77.22) (from J45)
  • exposure to tobacco smoke in the perinatal period (P96.81) (from J45)
  • history of tobacco dependence (Z87.891) (from J45)
  • occupational exposure to environmental tobacco smoke (Z57.31) (from J45)
  • tobacco dependence (F17.-) (from J45)
  • tobacco use (Z72.0) (from J45)

Parent code

  • J45AsthmaHeader

More specific codes J45.4

  • J45.40Moderate persistent asthma, uncomplicatedBillable
  • J45.41Moderate persistent asthma with (acute) exacerbationBillable
  • J45.42Moderate persistent asthma with status asthmaticusBillable

Related codes

  • J45.2Mild intermittent asthmaHeader
  • J45.3Mild persistent asthmaHeader
  • J45.5Severe persistent asthmaHeader
  • J45.9Other and unspecified asthmaHeader

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