J68.4
Chronic respiratory conditions due to chemicals, gases, fumes and vapors
J68.4 (also written J684) is a billable ICD-10-CM diagnosis code for chronic respiratory conditions due to chemicals, gases, fumes and vapors. It is part of the FY2027 code set, effective October 1, 2026. It is one of the 7 codes in category J68 (Respiratory conditions due to inhalation of chemicals, gases, fumes and vapors). The Alphabetic Index lists it under 8 entries. Its coding notes include a Code first instruction, a Use additional code instruction, a Code also instruction, 1 Excludes1 entry and 11 Excludes2 entries.
Code first
If the underlying condition listed here is present and known, sequence it first.
Use additional code
Add the listed code as a secondary code, if known.
- code to identify associated respiratory conditions, such as:
- acute respiratory failure (J96.0-)
Also from chapter/block level (7 notes)
Code also
Two codes may be needed to describe the condition. This note gives no sequencing order.
Excludes1
Not coded here. The listed conditions generally should not be reported together.
- chronic pulmonary edema due to chemicals, gases, fumes and vapors (J68.1)
Excludes2
Not included here. Both codes may be reported if the patient has both conditions.
Also from chapter/block level (11 notes)
- 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)
Notes
Also from chapter/block level (1 note)
- When a respiratory condition is described as occurring in more than one site and is not specifically indexed, it should be classified to the lower anatomic site (e.g. tracheobronchitis to bronchitis in J40).
Alphabetic Index terms
Terms the official Alphabetic Index lists for this code. 8 entries
- Bronchiolitis (acute) (infective) (subacute), chemical (chronic)
- Bronchitis (diffuse) (fibrinous) (hypostatic) (infective) (membranous), chemical (acute) (subacute), chronic
- Bronchitis (diffuse) (fibrinous) (hypostatic) (infective) (membranous), chemical (acute) (subacute), due to fumes or vapors
- Bronchitis (diffuse) (fibrinous) (hypostatic) (infective) (membranous), chemical (acute) (subacute), due to fumes or vapors, chronic
- Bronchitis (diffuse) (fibrinous) (hypostatic) (infective) (membranous), chronic, chemical (due to fumes or vapors)
- Bronchitis (diffuse) (fibrinous) (hypostatic) (infective) (membranous), chronic, due to, chemicals, gases, fumes or vapors (inhalation)
- Disease, diseased, respiratory (tract), chronic NOS, due to, chemicals, gases, fumes or vapors
- Disease, diseased, respiratory (tract), due to, chemicals, gases, fumes or vapors, chronic