Coding and coverage · ICD-10-CM

J20 Acute bronchitis

Not billable (header)Chapter 10

Report one of the more specific codes below.

Check coverage with this diagnosis

Codes under this one

  • J20.0 Acute bronchitis due to Mycoplasma pneumoniae
  • J20.1 Acute bronchitis due to Hemophilus influenzae
  • J20.2 Acute bronchitis due to streptococcus
  • J20.3 Acute bronchitis due to coxsackievirus
  • J20.4 Acute bronchitis due to parainfluenza virus
  • J20.5 Acute bronchitis due to respiratory syncytial virus
  • J20.6 Acute bronchitis due to rhinovirus
  • J20.7 Acute bronchitis due to echovirus
  • J20.8 Acute bronchitis due to other specified organisms
  • J20.9 Acute bronchitis, unspecified

Instructional notes

Chapter 10

Excludes2Not included here: the patient may have both; report both when both are present.
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • smoke inhalation (T59.81-)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
Use additional codeAdd a second code for the full picture.
  • code, where applicable, to identify:
  • exposure to environmental tobacco smoke (Z77.22)
  • exposure to tobacco smoke in the perinatal period (P96.81)
  • history of tobacco dependence (Z87.891)
  • occupational exposure to environmental tobacco smoke (Z57.31)
  • tobacco dependence (F17.-)
  • tobacco use (Z72.0)
Notes
  • 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).

Section J20-J22

Excludes2Not included here: the patient may have both; report both when both are present.
  • chronic obstructive pulmonary disease with acute lower respiratory infection (J44.0)

This code

Excludes1Not coded here: never report with this code, except when the two conditions are unrelated.
  • bronchitis NOS (J40)
  • tracheobronchitis NOS (J40)
Excludes2Not included here: the patient may have both; report both when both are present.
  • acute bronchitis with bronchiectasis (J47.0)
  • acute bronchitis with chronic obstructive asthma (J44.0)
  • acute bronchitis with chronic obstructive pulmonary disease (J44.0)
  • allergic bronchitis NOS (J45.909)
  • bronchitis due to chemicals, fumes and vapors (J68.0)
  • chronic bronchitis NOS (J42)
  • chronic mucopurulent bronchitis (J41.1)
  • chronic obstructive bronchitis (J44.-)
  • chronic obstructive tracheobronchitis (J44.-)
  • chronic simple bronchitis (J41.0)
  • chronic tracheobronchitis (J42)
Includes
  • acute and subacute bronchitis (with) bronchospasm
  • acute and subacute bronchitis (with) tracheitis
  • acute and subacute bronchitis (with) tracheobronchitis, acute
  • acute and subacute fibrinous bronchitis
  • acute and subacute membranous bronchitis
  • acute and subacute purulent bronchitis
  • acute and subacute septic bronchitis

Chapter 10: Diseases of the respiratory system · J20-J22 Other acute lower respiratory infections (J20-J22)

Source: ICD-10-CM FY 2027 code descriptions and tabular list (CMS and CDC National Center for Health Statistics), effective 2026-10-01 through 2027-09-30 · CMS ICD-10 files. HCC mapping: CMS-HCC V28, payment year 2027. As of 2026-11-04.

Coverage and payment depend on the claim details; confirm with the Medicare Administrative Contractor.