J67.7 — Air conditioner and humidifier lung
Is J67.7 billable?
Yes — J67.7 is billable for FY2027. J67.7 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. J67.7 may be submitted for encounters from October 1, 2026 through September 30, 2027.
J67.7 at a glance
| Code | J67.7 |
|---|---|
| Description | Air conditioner and humidifier lung |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does J67.7 group to?
J67.7 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.
- 196Interstitial Lung Disease with MCCmedical
- 197Interstitial Lung Disease with CCmedical
- 198Interstitial Lung Disease without CC/MCCmedical
As a secondary diagnosis, J67.7 is a complication or comorbidity (CC), which can move a stay into a higher-paying DRG.
How is J67.7 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to J67.7. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Humidifier lung or pneumonitis
- Air › conditioner lung or pneumonitis
- Pneumonitis › air-conditioner (acute) (primary)
- Pneumonitis › ventilation (acute) (primary)
- Pneumonitis › hypersensitivity › air conditioner lung (acute) (primary)
- Allergy, allergic › alveolitis › due to › organismssystems (reaction) (to)
Inclusion terms
Alternative wording in documentation that is classified to J67.7.
- Allergic alveolitis due to fungal, thermophilic actinomycetes and other organisms growing in ventilation [air conditioning] systems
Excludes1 — never code together — inherited from J67
The conditions below can never be reported together with J67.7 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- pneumonitis due to inhalation of chemicals, gases, fumes or vapors (J68.0)
Use additional code — inherited from Chapter 10
Report an additional code alongside J67.7 to fully describe the condition. J67.7 is sequenced first.
Excludes2 — not included here — inherited from Chapter 10
The conditions below are not part of J67.7, but a patient may have both at the same time. When documentation supports it, J67.7 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 J60-J70
The conditions below are not part of J67.7, but a patient may have both at the same time. When documentation supports it, J67.7 and the excluded code may both be reported.
How long has J67.7 existed?
J67.7 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.