2026 ICD-10-CM Diagnosis Code J70.5Respiratory conditions due to smoke inhalation
ICD-10-CM Codes›J00–J99›J60-J70›J70
- Billable — Valid for Submission
- Not Chronic
J70.5 is a billable ICD-10-CM diagnosis code for respiratory conditions due to smoke inhalation. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 205 through 206, 928 through 929. Coders also document this condition as inhalation injury. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Lung disease due to external agents.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Inhalation injury
- Smoke inhalation injury
Tabular List NotesGuidance
Coding notes and annotation back-references applicable to this code.
Code First
- smoke inhalation T59.81
Type 2 Excludes
- smoke inhalation due to chemicals, gases, fumes and vapors J68.9
Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions, the ICD-10-CM has a coding convention that requires the underlying condition be sequenced first followed by the manifestation. Wherever such a combination exists, there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation.
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
- Disease, diseased - See Also: Syndrome;
- acute or subacute NOS - J06.9
- due to
- smoke inhalation - J70.5
- with respiratory conditions - J70.5
External Cause of Injuries IndexGuidance
References for this code in the External Cause of Injuries Index.
- Disease, diseased
- respiratory (tract)
- acute or subacute NOS
- due to
- smoke inhalation
- Inhalation
- smoke
- with respiratory conditions
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Clinical InformationClinical
Smoke Inhalation Injury
pulmonary injury following the breathing in of toxic smoke from burning materials such as plastics, synthetics, building materials, etc. this injury is the most frequent cause of death in burn patients.
Patient EducationClinical
Inhalation Injuries
Inhalation injuries are acute injuries to your respiratory system and lungs. They can happen if you breathe in toxic substances, such as smoke (from fires), chemicals, particle pollution, and gases. Inhalation injuries can also be caused by extreme heat; these are a type of thermal injuries.
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert J70.5 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About J70.5Overview
Is J70.5 (Respiratory conditions due to other external agents) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report respiratory conditions due to smoke inhalation on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What MS-DRG does J70.5 group to?
When respiratory conditions due to smoke inhalation is the principal diagnosis on an inpatient stay, it groups to MS-DRG 205, 206, 928, 929, with relative weights from 0.9411 to 7.1727 depending on complications. Higher weights mean higher Medicare reimbursement.
What is the ICD-9 equivalent of J70.5?
Under the General Equivalence Mappings, respiratory conditions due to smoke inhalation converts to ICD-9-CM 508.2 (resp cond dt smoke inhal). The mapping is a direct match.
Footnotes
[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.
