ICD-10-CM 2027 diagnosis code
J18.2Hypostatic pneumonia, unspecified organism
J18.2 is a valid, billable ICD-10-CM code for hypostatic pneumonia, unspecified organism. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.
Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About J18.2
J18.2 is the ICD-10-CM diagnosis code for Hypostatic pneumonia, unspecified organism. It belongs to category J18 (pneumonia, unspecified organism), block J09-J18 (influenza and pneumonia) and chapter 10 (diseases of the respiratory system). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.
Within J18, choose J18.2 (Hypostatic pneumonia, unspecified organism) only when documentation doesn't support a more specific option: Bronchopneumonia, unspecified organism (J18.0), Lobar pneumonia, unspecified organism (J18.1), other pneumonia, unspecified organism (J18.8) and pneumonia, unspecified organism (J18.9).
Code first: , if applicable, associated influenza (J09.X1, J10.0-, J11.0-).
As a secondary diagnosis it is a CC (complication or comorbidity), which can move an inpatient stay into the "with CC" MS-DRG of its family, unless the principal diagnosis excludes it.
In MS-DRG v44.0, it is part of the grouping logic for DRG 189 (Pulmonary Edema and Respiratory Failure, relative weight 1.2108), in MDC 04 (Diseases and Disorders of the Respiratory System), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
Before ICD-10, this condition was coded in ICD-9-CM as 514 (pulmonary congestion and hypostasis).
Coding notes
- Hypostatic bronchopneumonia
- Passive pneumonia
Notes that apply from higher levels
Instructions written at a parent level also apply to J18.2.
› From J18 Pneumonia, unspecified organism
- abscess of lung with pneumonia (J85.1)
- aspiration pneumonia due to anesthesia during labor and delivery (O74.0)
- aspiration pneumonia due to anesthesia during pregnancy (O29)
- aspiration pneumonia due to anesthesia during puerperium (O89.0)
- aspiration pneumonia due to solids and liquids (J69.-)
- aspiration pneumonia NOS (J69.0)
- lipid pneumonia (J69.1)
- pneumonitis due to external agents (J67-J70)
- , if applicable, any associated condition such as:
- aspiration pneumonia (J69.-)
Broader instructions also apply from J09-J18 Influenza and pneumonia and Chapter 10: Diseases of the respiratory system.
Alphabetic index entries
10 entriesTerms in the official ICD-10-CM index that lead to J18.2.
- Anasarca › lung
- Anasarca › pulmonary
- Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved) › adynamic
- Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved) › broncho-, bronchial (confluent) (croupous) (diffuse) (disseminated) (hemorrhagic) (involving lobes) (lobar) (terminal) › hypostatic
- Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved) › hypostatic (broncho) (lobar)
- Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved) › lobar (disseminated) (double) (interstitial) › hypostatic
- Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved) › orthostatic
- Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved) › passive
- Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved) › static, stasis
- Stasis › pneumonia
Codes whose notes reference J18.2
MS-DRG v44.0 grouping
All DRGs →Inpatient MS-DRGs this diagnosis can group to, as the principal or a secondary diagnosis, depending on the rest of the claim.
MDC 04 · Diseases and Disorders of the Respiratory System
ICD-9-CM equivalent
Converter →- 514Pulmonary congestion and hypostasisapproximate
From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about J18.2
Is J18.2 billable?
- Yes. J18.2 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can J18.2 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict J18.2 as a principal diagnosis.
Is J18.2 a CC or MCC?
- J18.2 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.
What DRG does J18.2 group to?
- J18.2 is used in the MS-DRG v44.0 logic for MS-DRG 189 (Pulmonary Edema and Respiratory Failure). Which one applies depends on whether it is the principal diagnosis and on the rest of the claim.
What is the ICD-9 code for J18.2?
- The CMS General Equivalence Mappings map J18.2 to ICD-9-CM 514.