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ICD-10-CM 2027 diagnosis code

J67.7Air conditioner and humidifier lung

✓ Billable / specificCC — complication/comorbidity

J67.7 is a valid, billable ICD-10-CM code for air conditioner and humidifier lung. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.

Looking up by condition? See ICD-10 code for Humidifier lung or pneumonitis.

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 J67.7

J67.7 is the ICD-10-CM diagnosis code for air conditioner and humidifier lung. It belongs to category J67 (hypersensitivity pneumonitis due to organic dust), block J60-J70 (lung diseases due to external agents) 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 J67 (hypersensitivity pneumonitis due to organic dust), J67.7 is specifically for air conditioner and humidifier lung. Related codes cover Farmer's lung (J67.0), Bagassosis (J67.1), Bird fancier's lung (J67.2), Suberosis (J67.3), Maltworker's lung (J67.4), Mushroom-worker's lung (J67.5), Maple-bark-stripper's lung (J67.6), hypersensitivity pneumonitis due to other organic dusts (J67.8) and 1 more.

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 196 (Interstitial Lung Disease with MCC, relative weight 1.8336), DRG 197 (Interstitial Lung Disease with CC, relative weight 0.9492) and DRG 198 (Interstitial Lung Disease without CC/MCC, relative weight 0.7259), 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 495.7 ("Ventilation" pneumonitis).

Coding notes

Applicable toConditions and synonyms classified to this code
  • Allergic alveolitis due to fungal, thermophilic actinomycetes and other organisms growing in ventilation [air conditioning] systems

Notes that apply from higher levels

Instructions written at a parent level also apply to J67.7.

› From J67 Hypersensitivity pneumonitis due to organic dust
Includes
  • allergic alveolitis and pneumonitis due to inhaled organic dust and particles of fungal, actinomycetic or other origin
Excludes1
  • pneumonitis due to inhalation of chemicals, gases, fumes or vapors (J68.0)

Broader instructions also apply from J60-J70 Lung diseases due to external agents and Chapter 10: Diseases of the respiratory system.

Alphabetic index entries

6 entries

Terms in the official ICD-10-CM index that lead to J67.7.

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.

ICD-9-CM equivalent

Converter →
  • 495.7"Ventilation" pneumonitisexact

From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about J67.7

Is J67.7 billable?

Yes. J67.7 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can J67.7 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict J67.7 as a principal diagnosis.

Is J67.7 a CC or MCC?

J67.7 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.

What DRG does J67.7 group to?

J67.7 is used in the MS-DRG v44.0 logic for MS-DRG 196 (Interstitial Lung Disease with MCC), MS-DRG 197 (Interstitial Lung Disease with CC) and MS-DRG 198 (Interstitial Lung Disease without CC/MCC). 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 J67.7?

The CMS General Equivalence Mappings map J67.7 to ICD-9-CM 495.7.