ICD-10-CM 2027
ICD-10 code for lung edema
From the official ICD-10-CM alphabetic index entry “Edema, edematous (infectious) (pitting) (toxic) › lung”. Page updated September 29, 2026.
About coding lung edema
The ICD-10-CM code for lung edema is J81.1 (Chronic pulmonary edema). The official index lists 16 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on J81.1.
Within J81 (pulmonary edema), J81.1 is specifically for chronic pulmonary edema. Related codes cover acute pulmonary edema (J81.0).
Use an additional code to identify: exposure to environmental tobacco smoke (Z77.22), history of tobacco dependence (Z87.891), occupational exposure to environmental tobacco smoke (Z57.31), tobacco dependence (F17.-) and tobacco use (Z72.0).
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.
More specific lung edema codes (official index)
- with heart condition or failure
- newborn P29.0 — Neonatal cardiac failure
- acute J81.0 — Acute pulmonary edema
- chemical (acute) J68.1 — Pulmonary edema due to chemicals, gases, fumes and vapors
- chronic J68.1 — Pulmonary edema due to chemicals, gases, fumes and vapors
- chronic J81.1 — Chronic pulmonary edema
- due to
- chemicals, gases, fumes or vapors (inhalation) J68.1 — Pulmonary edema due to chemicals, gases, fumes and vapors
- external agent J70.9 — Respiratory conditions due to unspecified external agent
- specified NEC J70.8 — Respiratory conditions due to other specified external agents
- radiation J70.1 — Chronic and other pulmonary manifestations due to radiation
- due to
- chemicals, fumes or vapors (inhalation) J68.1 — Pulmonary edema due to chemicals, gases, fumes and vapors
- external agent J70.9 — Respiratory conditions due to unspecified external agent
- specified NEC J70.8 — Respiratory conditions due to other specified external agents
- high altitude T70.29 — Other effects of high altitude
- near drowning T75.1 — Unspecified effects of drowning and nonfatal submersion
- radiation J70.0 — Acute pulmonary manifestations due to radiation
- meaning failure, left ventricle I50.1 — Left ventricular failure, unspecified
Common questions about lung edema ICD-10 codes
What is the ICD-10 code for lung edema?
- J81.1 — Chronic pulmonary edema. More specific codes apply when the documentation supports them: P29.0, J81.0, J68.1, J68.1 and others below.
What is the ICD-10 code for acute lung edema?
- J81.0 — Acute pulmonary edema.
What is the ICD-10 code for chemical lung edema?
- J68.1 — Pulmonary edema due to chemicals, gases, fumes and vapors.
What is the ICD-10 code for chronic lung edema?
- J81.1 — Chronic pulmonary edema.
Is J81.1 billable?
- Yes. J81.1 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can J81.1 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict J81.1 as a principal diagnosis.
Is J81.1 a CC or MCC?
- J81.1 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.