ICDcodes.org
FY2027

J15.1 — Pneumonia due to Pseudomonas

BillableMCC

Is J15.1 billable?

Yes — J15.1 is billable for FY2027. J15.1 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. J15.1 may be submitted for encounters from October 1, 2026 through September 30, 2027.

J15.1 at a glance

CodeJ15.1
DescriptionPneumonia due to Pseudomonas
BillableYes
Code setICD-10-CM FY2027
Valid for encountersOctober 1, 2026 – September 30, 2027

Which MS-DRGs does J15.1 group to?

J15.1 sits in MDC 04 and helps define the logic of 3 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.

  • 177Respiratory Infections and Inflammations with MCCmedical
  • 178Respiratory Infections and Inflammations with CCmedical
  • 179Respiratory Infections and Inflammations without CC/MCCmedical

As a secondary diagnosis, J15.1 is a major complication or comorbidity (MCC), which can move a stay into a higher-paying DRG.

How is J15.1 listed in the Alphabetic Index?

These are the routes through the Alphabetic Index that lead to J15.1. They show the wording a clinician may have documented, which often differs from the Tabular description.

  • Pneumonia › Pseudomonas (acute) (double) (migratory) (purulent) (septic) (unresolved)
  • Infection, infected, infective › Pseudomonas NEC › pneumonia (opportunistic)
  • Pneumonia › broncho-, bronchial › Pseudomonas (acute) (double) (migratory) (purulent) (septic) (unresolved)
  • Pneumonia › in › Pseudomonas NEC (acute) (double) (migratory) (purulent) (septic) (unresolved)
  • Pneumonia › interstitial › pseudomonas (acute) (double) (migratory) (purulent) (septic) (unresolved)
  • Pneumonia › lobar › Pseudomonas (acute) (double) (migratory) (purulent) (septic) (unresolved)

Excludes1 — never code together — inherited from J15

The conditions below can never be reported together with J15.1 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.

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

Code first — inherited from J15

The underlying condition below must be sequenced before J15.1. J15.1 describes a manifestation and cannot be the principal or first-listed diagnosis.

Use additional code — inherited from Chapter 10

Report an additional code alongside J15.1 to fully describe the condition. J15.1 is sequenced first.

  • 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)

Use additional code — inherited from J09-J18

Report an additional code alongside J15.1 to fully describe the condition. J15.1 is sequenced first.

  • code, if applicable, to identify resistance to antimicrobial drugs (Z16.-)

Excludes2 — not included here — inherited from Chapter 10

The conditions below are not part of J15.1, but a patient may have both at the same time. When documentation supports it, J15.1 and the excluded code may both be reported.

  • 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)

Excludes2 — not included here — inherited from J09-J18

The conditions below are not part of J15.1, but a patient may have both at the same time. When documentation supports it, J15.1 and the excluded code may both be reported.

  • 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)

Code also — inherited from J15

Two codes may be needed to describe the condition fully. Whether J15.1 is sequenced first depends on the reason for the encounter.

  • , if applicable, any associated condition such as:
  • abscess (J85.1)
  • aspiration pneumonia (J69.-)

How long has J15.1 existed?

J15.1 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.

Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.

Which conditions are coded to J15.1?

What other codes are in the J15 family? (9)