FY2025
Effective from
- Inherited rules changed
Unspecified bacterial pneumonia
Billable diagnosis code
CDC/NCHS · FY2025code, if applicable, to identify resistance to antimicrobial drugs (Z16.-)
Coverage depends on the payer, service and applicable policy. A billable code does not guarantee payment.
For US diagnosis claims covered by HIPAA, ICD-10-CM is required from October 1, 2015.
Use the service date for outpatient/professional claims and the discharge date for hospital inpatient claims. Earlier encounters use ICD-9-CM; each individual code must also be valid for the applicable date.
Official coding guidelines → · CMS ↗First observed · 2015-10-01
Latest recorded change · FY2025
Effective from
Unspecified bacterial pneumonia
Billable diagnosis code
CDC/NCHS · FY2025| All editions | Effective from | Code history |
|---|---|---|
| FY2016 | 2015-10-01 | First observed |
| FY2017 | 2016-10-01 | Inherited rules changed |
| FY2018 | 2017-10-01 | No tabular change |
| FY2019 | 2018-10-01 | No tabular change |
| FY2020 | 2019-10-01 | No tabular change |
| FY2020 · April | 2020-04-01 | No tabular change |
| FY2021 | 2020-10-01 | No tabular change |
| FY2021 · 01-01 | 2021-01-01 | No tabular change |
| FY2022 | 2021-10-01 | No tabular change |
| FY2022 · 04-01 | 2022-04-01 | No tabular change |
| FY2023 | 2022-10-01 | No tabular change |
| FY2023 · 04-01 | 2023-04-01 | No tabular change |
| FY2024 | 2023-10-01 | Inherited rules changed |
| FY2024 · 04-01 | 2024-04-01 | No tabular change |
| FY2025 | 2024-10-01 | Inherited rules changed |
| FY2025 · 04-01 | 2025-04-01 | No tabular change |
| FY2026 | 2025-10-01 | No tabular change |
| FY2026 · April | 2026-04-01 | No tabular change |
| FY2027 | 2026-10-01 | No tabular change |
Historical mapping only; not an automatic code substitution.
Pneumonia due to gram-positive bacteria
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).
code, if applicable, to identify resistance to antimicrobial drugs (Z16.-)
bronchopneumonia due to bacteria other than S. pneumoniae and H. influenzae
Other entries in the same category; these are not automatic substitutes.
| Code | Description | Category · further specificity required |
|---|---|---|
| J15.0 | Pneumonia due to Klebsiella pneumoniae | Billable / specific |
| J15.1 | Pneumonia due to Pseudomonas | Billable / specific |
| J15.2 | Pneumonia due to staphylococcus | Category · further specificity required |
| J15.3 | Pneumonia due to streptococcus, group B | Billable / specific |
| J15.4 | Pneumonia due to other streptococci | Billable / specific |
| J15.5 | Pneumonia due to Escherichia coli | Billable / specific |
| J15.6 | Pneumonia due to other Gram-negative bacteria | Category · further specificity required |
| J15.7 | Pneumonia due to Mycoplasma pneumoniae | Billable / specific |
| J15.8 | Pneumonia due to other specified bacteria | Billable / specific |
Official titles and instructions are preserved in their source language. Official sources ↗