J18.0
Bronchopneumonia, unspecified organism
Billable FY2026 2025-10-01 → 2026-09-30
This is the unspecified option. 4 more
specific codes sit alongside it. Worth
checking whether the documentation supports one of them.
Exclusions 37 never code together
J18code
Excludes1
Excludes2
- abscess of lung with pneumonia (J85.1)J85.1
- aspiration pneumonia due to anesthesia during labor and delivery (O74.0)O74.0
- aspiration pneumonia due to anesthesia during pregnancy (O29)O29
- aspiration pneumonia due to anesthesia during puerperium (O89.0)O89.0
- aspiration pneumonia due to solids and liquids (J69.-)J69.-
- aspiration pneumonia NOS (J69.0)J69.0
- lipid pneumonia (J69.1)J69.1
- pneumonitis due to external agents (J67-J70)J67-J70
J18.0code
J09-J18block
Excludes2
- allergic or eosinophilic pneumonia (J82)J82
- aspiration pneumonia NOS (J69.0)J69.0
- meconium pneumonia (P24.01)P24.01
- neonatal aspiration pneumonia (P24.-)P24.-
- pneumonia due to solids and liquids (J69.-)J69.-
- congenital pneumonia (P23.9)P23.9
- lipid pneumonia (J69.1)J69.1
- rheumatic pneumonia (I00)I00
- ventilator associated pneumonia (J95.851)J95.851
J00-J99chapter
Excludes2
- certain conditions originating in the perinatal period (P04-P96)P04-P96
- certain infectious and parasitic diseases (A00-B99)A00-B99
- complications of pregnancy, childbirth and the puerperium (O00-O9A)O00-O9A
- congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)Q00-Q99
- endocrine, nutritional and metabolic diseases (E00-E88)E00-E88
- injury, poisoning and certain other consequences of external causes (S00-T88)S00-T88
- neoplasms (C00-D49)C00-D49
- smoke inhalation (T59.81-)T59.81-
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)R00-R94
Excludes1 — never code together. The excluded condition and this one are mutually exclusive.
Excludes2 — not included here, but the patient may have both. Code both when documented.
Instructional notes 12
J18code
J09-J18block
Use additional code
- code, if applicable, to identify resistance to antimicrobial drugs (Z16.-)Z16.-
J00-J99chapter
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).J40
Use additional code
- code, where applicable, to identify:
- exposure to environmental tobacco smoke (Z77.22)Z77.22
- exposure to tobacco smoke in the perinatal period (P96.81)P96.81
- history of tobacco dependence (Z87.891)Z87.891
- occupational exposure to environmental tobacco smoke (Z57.31)Z57.31
- tobacco dependence (F17.-)F17.-
- tobacco use (Z72.0)Z72.0
Index entries leading here 2
Alongside this code 4 same parent — J18
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.