J09-J18

Non-Billable
ChapterJ00–J99
Rankblock
Official Description

Influenza and pneumonia (J09-J18)

Metadata & Insights
  • •2026 ICD-10-CM Edition - Effective October 1, 2025.
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 10: Diseases of the Respiratory System (J00-J99).

CH10 Parent Instructions

Excludes2(Not included here)
  • 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 Code
  • 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)

Instructional Notes

Excludes2(Not included here)
  • allergic or eosinophilic pneumonia (J82)
  • aspiration pneumonia NOS (J69.0)
  • meconium pneumonia (P24.01)
  • neonatal aspiration pneumonia (P24.-)
  • pneumonia due to solids and liquids (J69.-)
  • congenital pneumonia (P23.9)
  • lipid pneumonia (J69.1)
  • rheumatic pneumonia (I00)
  • ventilator associated pneumonia (J95.851)
Use Additional Code
  • code, if applicable, to identify resistance to antimicrobial drugs (Z16.-)

Clinical Hierarchy

CH10Diseases of the respiratory system (J00-J99)
J09-J18Influenza and pneumonia (J09-J18)
J09Influenza due to certain identified influenza viruses
J10Influenza due to other identified influenza virus
J11Influenza due to unidentified influenza virus
J12Viral pneumonia, not elsewhere classified
J13Pneumonia due to Streptococcus pneumoniae
J14Pneumonia due to Hemophilus influenzae
J15Bacterial pneumonia, not elsewhere classified
J16Pneumonia due to other infectious organisms, not elsewhere classified
J17Pneumonia in diseases classified elsewhere
J18Pneumonia, unspecified organism

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to J09-J18:

chapterCH10
Diseases of the respiratory system (J00-J99)
View context instructions

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

Find Procedures (ICD-10-PCS)

Find surgical and procedural codes related to Influenza and pneumonia (J09-J18).

Search PCS Codes