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J15 ICD-10-CM Code: Bacterial pneumonia, not elsewhere classified

A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.

Official description

J15

Bacterial pneumonia, not elsewhere classified

ICD-10-CM diagnosis code · United States clinical modification

Where J15 sits

  1. 1

    Chapter 10

    Diseases of the respiratory system (J00-J99)

  2. 2

    Section

    Influenza and pneumonia (J09-J18)

  3. 3

    Category J15

    Bacterial pneumonia, not elsewhere classified

  4. 4

    Code J15

    Bacterial pneumonia, not elsewhere classified

Codes under J15

J15 is a non-billable category. Choose the child code that best matches the documented diagnosis.

J15.0Pneumonia due to Klebsiella pneumoniaeJ15.1Pneumonia due to PseudomonasJ15.2Pneumonia due to staphylococcusJ15.3Pneumonia due to streptococcus, group BJ15.4Pneumonia due to other streptococciJ15.5Pneumonia due to Escherichia coliJ15.6Pneumonia due to other Gram-negative bacteriaJ15.7Pneumonia due to Mycoplasma pneumoniaeJ15.8Pneumonia due to other specified bacteriaJ15.9Unspecified bacterial pneumonia

Notes for this code

Inclusion terms

No inclusion terms are listed for J15.

Code first

  • , if applicable, associated influenza (J09.X1, J10.0-, J11.0-)

Use additional code

No “use additional code” instruction is listed for J15.

Excludes1

Conditions that should not be reported together with this code.

  • chlamydial pneumonia (J16.0)
  • congenital pneumonia (P23.-)
  • Legionnaires' disease (A48.1)
  • spirochetal pneumonia (A69.8)

Excludes2

Conditions not included here that may be reported separately when present.

No Excludes2 note is listed for J15.

Source and release

Data release
U.S. ICD-10-CM · FY 2027
Effective date
Oct 1, 2026

This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.

Review the CDC/NCHS ICD-10-CM source

Frequently asked questions

What does ICD-10-CM code J15 mean?

J15 is the FY 2027 U.S. ICD-10-CM code for “Bacterial pneumonia, not elsewhere classified.”

Is J15 a billable or specific ICD-10-CM code?

No. J15 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.

Where is J15 located in ICD-10-CM?

J15 is listed in Chapter 10, Diseases of the respiratory system (J00-J99), within Influenza and pneumonia (J09-J18) (J09–J18), under category J15, Bacterial pneumonia, not elsewhere classified.

What coding notes are listed for J15?

No inclusion terms are listed for J15 in this reference record. Code-first instructions: , if applicable, associated influenza (J09.X1, J10.0-, J11.0-). Excludes1 notes: chlamydial pneumonia (J16.0); congenital pneumonia (P23.-); Legionnaires' disease (A48.1); spirochetal pneumonia (A69.8). No Excludes2 note is listed.