| P23 | Congenital pneumonia | NON-BILLABLE CODE |
| P23.0 | Congenital pneumonia due to viral agent | BILLABLE CODE |
| P23.1 | Congenital pneumonia due to Chlamydia | BILLABLE CODE |
| P23.3 | Congenital pneumonia due to streptococcus, group B | BILLABLE CODE |
| P23.4 | Congenital pneumonia due to Escherichia coli | BILLABLE CODE |
| P23.5 | Congenital pneumonia due to Pseudomonas | BILLABLE CODE |
| P23.6 | Congenital pneumonia due to other bacterial agents | BILLABLE CODE |
| P23.8 | Congenital pneumonia due to other organisms | BILLABLE CODE |
| P23.9 | Congenital pneumonia, unspecified | BILLABLE CODE |
