J15.9 ICD-10-CM Code: Unspecified bacterial pneumonia

Coding instructions

Official Tabular Instructional Notes: the inclusion, exclusion and sequencing notes published for J15.9 in the official ICD-10-CM tabular list, quoted as published.

Source: CMS/CDC — ICD-10-CM Tabular ListRelease: FY2026Effective: October 1, 2025

Notes without a marker are published on J15.9 itself; “inherited from” names the category or block whose note applies here.

Coder workflow for J15.9

MedCoder structured workflow — derived from this code’s own official record

Before you code J15.9

1. Unspecified does not mean incorrect. When the record gives no greater specificity, J15.9 may be the appropriate code. Check the record for detail that supports a more specific sibling. An unspecified code is for records that do not provide the detail a more specific code needs; a query, not an assumption, is the route to specificity (Guidelines I.A.9.b, I.B.18).

   ReviewJ15.0, J15.1, J15.2, J15.3, J15.4, J15.5, J15.6, J15.7

   See the relationships section · Guide: Other vs unspecified (NEC vs NOS) →

2. Check the Excludes1 note: if the documentation supports a condition named there, do not simply proceed with J15.9. Excludes1 conditions are not reported together with this code unless the record shows they are unrelated (Guidelines I.A.12.a).

   See the official tabular notes

Choose the right path

1. Does the record document the detail a more specific sibling code needs?
   Yes → Review the specific siblings in this subcategory.
   No → Continue — J15.9 is appropriate when the documentation goes no further.

   ReviewJ15.0, J15.1, J15.2, J15.3, J15.4, J15.5, J15.6, J15.7

2. Does the documentation support a condition named in J15.9’s Excludes1 note?
   Yes → Do not simply proceed: review the excluded code. Both are reported only when the record shows the two conditions are unrelated.
   No → Continue.

   ReviewJ16.0, P23, A48.1, A69.8

3. Is the underlying (etiologic) condition the Code First note names documented?
   Yes → Sequence the underlying condition first, then J15.9.
   No → Continue; do not add an underlying condition the record does not document.

   ReviewJ09.X1, J10.0, J11.0

Consider J15.9. Then work the Use Additional Code note and review the Code Also note, and confirm the code is valid for the date of service in the Verify section.

Documentation check

The provider’s diagnostic statement

Codes are assigned from the provider’s documented diagnosis, not from clinical criteria, test values or a medication list (Guidelines I.A.19).

The underlying (etiologic) condition

Named in the Code First note; sequenced before this code when documented (Guidelines I.A.13).

The conditions the Use Additional Code note names

Reported with this code when documented; a conditional instruction (“if applicable”, “if known”) applies only when the record supports it.

Any detail beyond this code’s title

What the record states that a more specific sibling code would capture — or its absence, which itself supports the unspecified code.

Official instructions as workflow

• Excludes1 — check before selecting J15.9(4 notes)

  Coding workflow: If the documentation supports a condition named in this note, do not simply proceed with J15.9: the two are not reported together. The one exception is when the record shows the two conditions are unrelated to each other.

  CompareJ16.0, P23, A48.1, A69.8

  See the official tabular notes · Guidelines I.A.12.a

• Excludes2 — not part of J15.9(9 notes)

  Coding workflow: The conditions named in this note are not included in J15.9. When the record documents both, both may be reported; the note is a boundary, not a prohibition.

  CompareJ82, J69.0, P24.01, P24, J69, P23.9

  See the official tabular notes · Guidelines I.A.12.b

• Code First — sequencing check(1 note)

  Coding workflow: Check whether the underlying or etiologic condition the note names is documented. When it is, sequence it before J15.9. Do not add an underlying condition the record does not document.

  ReviewJ09.X1, J10.0, J11.0

  See the official tabular notes · Guidelines I.A.13

• Use Additional Code — after identifying J15.9(1 note)

  Coding workflow: Check whether the documentation supports the additional code(s) the note names, and report them with J15.9 when it does. Where the instruction is conditional (“if applicable”, “if known”), it applies only when the record documents the condition.

  ReviewZ16

  See the official tabular notes · Guidelines I.A.13

• Code Also — related condition(3 notes)

  Coding workflow: Review the related condition when both are documented and the instruction applies. A Code Also note does not fix sequencing; the order follows the circumstances of the encounter.

  ReviewJ85.1, J69

  See the official tabular notes · Guidelines I.A.17

Coding decision scenarios

Pattern scenarios for this code’s structure — decision rules, not clinical cases

Every row is derived from this code’s own record — its title, tabular notes, 7th-character family and same-category siblings — with fixed MedCoder wording; nothing is inferred about a patient. The official notes and guideline text are in the sections each row links to, and they control.

Indexed Clinical Terms (5)

Official source data — entries quoted as published, in the Index’s own lookup phrasing

Clinical term phrases from the official ICD-10-CM Index to Diseases and Injuries that map to this code. These are alphabetic-index entries shown as the Index writes them — lookup phrasing, not necessarily the wording of a final diagnosis.

• Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved), aspiration, due to, aspiration of microorganisms, bacterial
• Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved), bacillus
• Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved), bacterial
• Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved), broncho-, bronchial (confluent) (croupous) (diffuse) (disseminated) (hemorrhagic) (involving lobes) (lobar) (terminal), bacterial
• Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved), lobar (disseminated) (double) (interstitial), bacterial

Don’t confuse J15.9 with…

MedCoder analysis — pairs from this code’s official notes, distinctions written by MedCoder

The codes most likely to be picked instead of J15.9 — named in its own official notes, or sharing its laterality or encounter family — with what separates them and which documentation moves the case. Each links to the full comparison.

• J16.0— Excludes1 conflict (Excludes1 — generally not reported together)

  Not coded here — the tabular list excludes this pair for the same encounter.

  Not reported together with this code, except where the two conditions are documented as unrelated.

  What moves you there: Documentation of chlamydial pneumonia moves the case to J16.0; the two are not reported together unless documented as unrelated.

  Full comparison: J15.9 vs J16.0 →

• P23— Excludes1 conflict (Excludes1 — generally not reported together)

  Not coded here — the tabular list excludes this pair for the same encounter.

  Not reported together with this code, except where the two conditions are documented as unrelated.

  What moves you there: Documentation of congenital pneumonia moves the case to P23; the two are not reported together unless documented as unrelated.

  Full comparison: J15.9 vs P23 →

• A48.1— Excludes1 conflict (Excludes1 — generally not reported together)

  Not coded here — the tabular list excludes this pair for the same encounter.

  Not reported together with this code, except where the two conditions are documented as unrelated.

  What moves you there: Documentation of Legionnaires' disease moves the case to A48.1; the two are not reported together unless documented as unrelated.

  Full comparison: J15.9 vs A48.1 →

• A69.8— Excludes1 conflict (Excludes1 — generally not reported together)

  Not coded here — the tabular list excludes this pair for the same encounter.

  Not reported together with this code, except where the two conditions are documented as unrelated.

  What moves you there: Documentation of spirochetal pneumonia moves the case to A69.8; the two are not reported together unless documented as unrelated.

  Full comparison: J15.9 vs A69.8 →

• J82— Excludes2 relationship (Informational)

  Distinct conditions — both may be reported.

  A distinct condition — both may be reported when both are documented.

  What moves you there: Documentation of allergic or eosinophilic pneumonia adds J82; it is not part of this code and both may be reported when both are documented.

  Full comparison: J15.9 vs J82 →

• J69.0— Excludes2 relationship (Informational)

  Distinct conditions — both may be reported.

  A distinct condition — both may be reported when both are documented.

  What moves you there: Documentation of aspiration pneumonia NOS adds J69.0; it is not part of this code and both may be reported when both are documented.

  Full comparison: J15.9 vs J69.0 →

Relationships are read from this code's own official notes, its laterality siblings and its encounter family; the wording of each distinction is MedCoder editorial, and the documentation named in each “what moves you there” line is the official note phrase or sibling title itself. Source: CMS ICD-10-CM tabular instructional notes; ICD-10-CM Official Guidelines, Section I.A.12.a.

Decision Points

The directives on this code's own record, as a pre-claim checklist.

1. Sequencing: 1 Code First instruction — the underlying condition is sequenced before this code when present. See the Code First notes
2. 1 Use Additional Code instruction — report the named additional code(s) when the documentation supports them. See the Use Additional Code notes
3. 3 Code Also notes — a second code may apply; the guidelines leave its sequencing to the circumstances of the encounter. See the Code Also notes
4. 4 Excludes1 entries — codes named there are generally not reported together with this code (Guidelines I.A.12.a). See the Excludes1 notes
5. 9 Excludes2 entries — those conditions are not part of this code and may be reported additionally when documented. See the Excludes2 notes

Checklist rows are derived from this code's own official directives; the wording of each check is MedCoder editorial. The official notes themselves are in the sections each row links to.

Verify Before Coding

• MCC as a secondary diagnosis (FY2026). Can raise the stay's MS-DRG severity tier.

From the code registry, the Medicare Code Editor, and the MS-DRG Definitions Manual. Check it against a full claim in Claim Check.

Relationships & Classification

MedCoder structured relationships — computed from published CMS and AHRQ datasets

Other codes that name J15.9 or its code family, from the CMS ICD-10-CM tabular instructional notes. Tabular-note edges are stored at the code family level that carries each note.

Referenced by 1 Use Additional Code instruction: J95.89 — Other postprocedural complications and disorders of respiratory system, not elsewhere classified (via J15.-).

These codes instruct coders to additionally report this code when it applies.

Referenced by 2 Code Also instructions across 2 chapters: D81.82 — Activated Phosphoinositide 3-kinase Delta Syndrome [APDS] (via J15.-), J69 — Pneumonitis due to solids and liquids (via J15.-).

These codes suggest coding this condition alongside when both are present.

MS-DRG Grouper Relationships (FY2026)

Potential MS-DRG participation — not a DRG assignment.

FY2026 MS-DRG: MCC — Major Complication or Comorbidity. Reported as a secondary diagnosis, this code raises the stay's MS-DRG severity tier — except when the principal diagnosis is one of 129 clinically related codes on its CMS exclusion list. Does not count toward severity when the stay groups to DRGs 974-976 (HIV with Major Related Condition).

Named in the grouper logic of 8 MS-DRGs: DRG 193 (MDC 04), DRG 194 (MDC 04), DRG 195 (MDC 04), DRG 791 (MDC 15), DRG 793 (MDC 15), DRG 974 (MDC 25), DRG 975 (MDC 25), DRG 976 (MDC 25).

From the CMS MS-DRG Definitions Manual (Appendices B and C). Actual DRG assignment depends on the complete claim.

Clinical classification (AHRQ CCSR):RSP002 — Pneumonia (except that caused by tuberculosis) (default); INF003 — Bacterial infections.

Clinical Classifications Software Refined (CCSR) for ICD-10-CM Diagnoses. Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality.

Related Codes

Same clinical process (MS-DRG)

Acts as MCC — raises the severity of other admissions. CMS groups these diagnoses into one MS-DRG principal-diagnosis exclusion process — a CC/MCC on this list never raises severity when the principal diagnosis is also on it.

J15.211 — Pneumonia due to Methicillin susceptible Staphylococcus aureus, J15.212 — Pneumonia due to Methicillin resistant Staphylococcus aureus, J15.29 — Pneumonia due to other staphylococcus, J15.3 — Pneumonia due to streptococcus, group B, J15.4 — Pneumonia due to other streptococci, J15.5 — Pneumonia due to Escherichia coli, J15.61 — Pneumonia due to Acinetobacter baumannii, J15.69 — Pneumonia due to other Gram-negative bacteria, J15.7 — Pneumonia due to Mycoplasma pneumoniae, J15.8 — Pneumonia due to other specified bacteria, J16.0 — Chlamydial pneumonia, J16.8 — Pneumonia due to other specified infectious organisms, J18.0 — Bronchopneumonia, unspecified organism, J18.1 — Lobar pneumonia, unspecified organism, J18.8 — Other pneumonia, unspecified organism, J18.9 — Pneumonia, unspecified organism, J22 — Unspecified acute lower respiratory infection, J44.81 — Bronchiolitis obliterans and bronchiolitis obliterans syndrome, J44.89 — Other specified chronic obstructive pulmonary disease, J44.9 — Chronic obstructive pulmonary disease, unspecified, +108 more

Same clinical category (CCSR)

AHRQ's Clinical Classifications Software groups these diagnoses under the same clinical categories (Pneumonia (except that caused by tuberculosis), Bacterial infections).

J15.211 — Pneumonia due to Methicillin susceptible Staphylococcus aureus, J15.212 — Pneumonia due to Methicillin resistant Staphylococcus aureus, J15.29 — Pneumonia due to other staphylococcus, J15.3 — Pneumonia due to streptococcus, group B, J15.4 — Pneumonia due to other streptococci, J15.5 — Pneumonia due to Escherichia coli, J15.6 — Pneumonia due to other Gram-negative bacteria, J15.61 — Pneumonia due to Acinetobacter baumannii, J15.69 — Pneumonia due to other Gram-negative bacteria, J15.7 — Pneumonia due to Mycoplasma pneumoniae, J15.8 — Pneumonia due to other specified bacteria, J16.0 — Chlamydial pneumonia, J16.8 — Pneumonia due to other specified infectious organisms, J17 — Pneumonia in diseases classified elsewhere, J18.0 — Bronchopneumonia, unspecified organism, J18.1 — Lobar pneumonia, unspecified organism, J18.8 — Other pneumonia, unspecified organism, J18.9 — Pneumonia, unspecified organism, J85.1 — Abscess of lung with pneumonia, J95.851 — Ventilator associated pneumonia, +418 more

Same Index main term, other category

The ICD-10-CM Index to Diseases and Injuries files this code under the main term “Pneumonia”; these codes share that main term but sit in a different category of the Tabular List.

J12.0 — Adenoviral pneumonia (adenoviral), J12.1 — Respiratory syncytial virus pneumonia (respiratory syncytial virus), J12.2 — Parainfluenza virus pneumonia (parainfluenza virus), J12.3 — Human metapneumovirus pneumonia (human metapneumovirus), J12.81 — Pneumonia due to SARS-associated coronavirus (SARS-associated coronavirus), J12.82 — Pneumonia due to coronavirus disease 2019 (COVID-19), J12.89 — Other viral pneumonia (specified NEC, virus NEC), J12.9 — Viral pneumonia, unspecified (viral, virus), J13 — Pneumonia due to Streptococcus pneumoniae (pneumococcal), J14 — Pneumonia due to Hemophilus influenzae (Hemophilus influenzae), J16.0 — Chlamydial pneumonia (chlamydial), J16.8 — Pneumonia due to other specified infectious organisms (specified NEC, organism NEC), J18.0 — Bronchopneumonia, unspecified organism (broncho-, bronchial), J18.1 — Lobar pneumonia, unspecified organism (lobar), J18.2 — Hypostatic pneumonia, unspecified organism (passive), J18.8 — Other pneumonia, unspecified organism (specified NEC), J18.9 — Pneumonia, unspecified organism, J68.0 — Bronchitis and pneumonitis due to chemicals, gases, fumes and vapors (nitrogen dioxide), J69.0 — Pneumonitis due to inhalation of food and vomit (aspiration), J69.1 — Pneumonitis due to inhalation of oils and essences (lipid, lipoid), +69 more

Lab tests where this diagnosis supports Medicare coverage (NCD)

Medicare's National Coverage Determination (NCD) program lists this diagnosis as medical justification for these lab tests.

Blood Glucose Test, HIV Screening Test

Contextual Map

Every relationship of J15.9 in one view: hierarchy, official tabular instructions in both directions, clinical classification, risk adjustment, MS-DRG participation, index terms and change history — each edge carrying the CMS source it derives from.

Run J15.9 with these 3 related codes in Claim Check

Hierarchy

• J00-J99 — Chapter 10: Diseases of the Respiratory System (J00-J99) (J00-J99)[Hierarchy]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• J09-J18 — Influenza and pneumonia[Hierarchy]— CMS ICD-10-CM tabular structure · icd10cm-fy2026

Referenced by Use Additional Code instructions

• J95.89 — Other postprocedural complications and disorders of respiratory system, not elsewhere classified[Use Additional Code](via J15.-): “bacterial or viral pneumonia (J12-J18)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026

Referenced by Code Also instructions

• D81.82 — Activated Phosphoinositide 3-kinase Delta Syndrome [APDS][Code Also](via J15.-): “pneumonia (J12-J18)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
• J69 — Pneumonitis due to solids and liquids[Code Also](via J15.-): “bacterial pneumonia (J13-J15.-)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026

Clinical classification (CCSR)

• RSP002 — Pneumonia (except that caused by tuberculosis)[CCSR]— AHRQ CCSR for ICD-10-CM Diagnoses (HCUP)
• INF003 — Bacterial infections[CCSR]— AHRQ CCSR for ICD-10-CM Diagnoses (HCUP)

MS-DRG Grouper

• MCC — Major Complication or Comorbidity [MS-DRG severity]: “As a secondary diagnosis this code can raise the stay's MS-DRG severity tier (MCC). Not counted when the stay groups to DRGs 974-976 (HIV with Major Related Condition).”— CMS MS-DRG Definitions Manual (Appendix C) · FY2026
• DRG 193 — SIMPLE PNEUMONIA AND PLEURISY WITH MCC[MS-DRG]: “SIMPLE PNEUMONIA AND PLEURISY WITH MCC (MDC 04)”— CMS MS-DRG Definitions Manual (Appendix B) · FY2026
• DRG 194 — SIMPLE PNEUMONIA AND PLEURISY WITH CC[MS-DRG]: “SIMPLE PNEUMONIA AND PLEURISY WITH CC (MDC 04)”— CMS MS-DRG Definitions Manual (Appendix B) · FY2026
• DRG 195 — SIMPLE PNEUMONIA AND PLEURISY WITHOUT CC/MCC[MS-DRG]: “SIMPLE PNEUMONIA AND PLEURISY WITHOUT CC/MCC (MDC 04)”— CMS MS-DRG Definitions Manual (Appendix B) · FY2026
• DRG 791 — PREMATURITY WITH MAJOR PROBLEMS[MS-DRG]: “PREMATURITY WITH MAJOR PROBLEMS (MDC 15)”— CMS MS-DRG Definitions Manual (Appendix B) · FY2026
• DRG 793 — FULL TERM NEONATE WITH MAJOR PROBLEMS[MS-DRG]: “FULL TERM NEONATE WITH MAJOR PROBLEMS (MDC 15)”— CMS MS-DRG Definitions Manual (Appendix B) · FY2026
• DRG 974 — HIV WITH MAJOR RELATED CONDITION WITH MCC[MS-DRG]: “HIV WITH MAJOR RELATED CONDITION WITH MCC (MDC 25)”— CMS MS-DRG Definitions Manual (Appendix B) · FY2026
• DRG 975 — HIV WITH MAJOR RELATED CONDITION WITH CC[MS-DRG]: “HIV WITH MAJOR RELATED CONDITION WITH CC (MDC 25)”— CMS MS-DRG Definitions Manual (Appendix B) · FY2026
• and 1 more

MDC crossing

• MDC 04 — Diseases and Disorders of the Respiratory System[MDC crossing]: “Diseases and Disorders of the Respiratory System — the grouper's crossing between diagnoses and procedures: a principal diagnosis sets the MDC, and same-MDC procedures move the stay to its surgical DRGs. 3,998 same-MDC procedures group here; browse them on the MDC page.”— CMS MS-DRG Definitions Manual · FY2026
• MDC 15 — Newborns and Other Neonates with Conditions Originating in Perinatal Period[MDC crossing]: “Newborns and Other Neonates with Conditions Originating in Perinatal Period — the grouper's crossing between diagnoses and procedures: a principal diagnosis sets the MDC, and same-MDC procedures move the stay to its surgical DRGs.”— CMS MS-DRG Definitions Manual · FY2026

Index entries

• Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved), aspiration, due to, aspiration of microorganisms, bacterial[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026
• Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved), bacillus[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026
• Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved), bacterial[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026
• Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved), broncho-, bronchial (confluent) (croupous) (diffuse) (disseminated) (hemorrhagic) (involving lobes) (lobar) (terminal), bacterial[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026
• Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved), lobar (disseminated) (double) (interstitial), bacterial[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026

Nearest codes (17)

• J15 — Bacterial pneumonia, not elsewhere classified[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• J15.0 — Pneumonia due to Klebsiella pneumoniae[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• J15.1 — Pneumonia due to Pseudomonas[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• J15.2 — Pneumonia due to staphylococcus[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• J15.20 — Pneumonia due to staphylococcus, unspecified[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• J15.21 — Pneumonia due to staphylococcus aureus[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• J15.211 — Pneumonia due to Methicillin susceptible Staphylococcus aureus[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• J15.212 — Pneumonia due to Methicillin resistant Staphylococcus aureus[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• and 9 more

Change history

• FY2016 — In the code set at ICD-10-CM adoption [Change history]— CMS release files (code change ledger) · icd10cm-fy2016

Relevant guides

• How Do I Code Pneumonia? Organism, Influenza First, Aspiration, and Ventilator-Associated →

Sources for this page

Codes, titles, notes, index terms and mappings on this page are transcribed from the datasets below. Relationships MedCoder computed and text MedCoder wrote are labelled where they appear.

Code, title, tabular notes and index terms Official source data

CMS/CDC ICD-10-CM FY2026 tabular list, index and tables, effective October 1, 2025 Release, file and checksum · Publisher’s page

Claim edits Official source data

CMS Definitions of Medicare Code Edits — v43.1 (April 2026) Release, file and checksum · Publisher’s page

Inpatient payment groups Official source data

CMS MS-DRG Definitions Manual (incl. Appendix B diagnosis index, Appendix C CC/MCC list, Appendix E procedure index) and IPPS Final Rule tables — v43 Release, file and checksum · Publisher’s page

Change history and date-of-service validity Official source data

CMS ICD-10-CM release addenda, ingested release by release into the change ledger Release, file and checksum · Publisher’s page

Comparisons, relationships and the contextual map MedCoder structured relationship

Computed by MedCoder from the tabular notes and tables above; every derived relationship is marked as derived where it appears

Summary and FAQ answers MedCoder explanation

Written by MedCoder to explain the sources above: drafted with AI assistance, checked by a person against the release files, and labelled as MedCoder text where it appears. Not official text.

Labels on this page: Official source data · MedCoder structured relationship · MedCoder explanation. How to read the labels · All data sources and release dates

Nearest Codes in This Family

Official ICD-10-CM classifications closest to J15.9 in its code family, with their registry titles.

• J15.212 — Pneumonia due to Methicillin resistant Staphylococcus aureus
• J15.29 — Pneumonia due to other staphylococcus
• J15.3 — Pneumonia due to streptococcus, group B
• J15.4 — Pneumonia due to other streptococci
• J15.5 — Pneumonia due to Escherichia coli
• J15.6 — Pneumonia due to other Gram-negative bacteria
• J15.61 — Pneumonia due to Acinetobacter baumannii
• J15.69 — Pneumonia due to other Gram-negative bacteria
• J15.7 — Pneumonia due to Mycoplasma pneumoniae
• J15.8 — Pneumonia due to other specified bacteria

View all codes in the J15 family