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J68.4

J68.4: Chronic respiratory conditions due to chemicals, gases, fumes and vapors

Billable / specific codeICD-10-CM

J68.4 is a billable, specific ICD-10-CM code for chronic respiratory conditions due to chemicals, gases, fumes and vapors. It is valid for submission on a claim.

Check J68.4 with the rest of the claim: free scrubber

Excludes1: never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

  • chronic pulmonary edema due to chemicals, gases, fumes and vapors (J68.1)

Code also

Both codes may be needed to describe the encounter fully. Sequencing depends on the reason for the visit.

  • , if applicable, chronic conditions, such as:
  • chronic bronchitis (J42)
  • emphysema (J43.-)
  • obliterative bronchiolitis (J44.81)
  • pulmonary fibrosis (J84.10)

Risk adjustment

J68.4 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:

  • HCC 280 Chronic Obstructive Pulmonary Disease, Interstitial Lung Disorders, and Other Chronic Lung Disorders0.319 RAF

Coefficient shown for the Community Non-dual Aged segment. A higher HCC in the same hierarchy will suppress this one, so capturing it does not always add score. Look up the whole chart to see which of its HCCs the hierarchy would zero.

Medicare coverage

J68.4 is named in 7 Medicare coverage policies: 7 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

  • A52466Nebulizers - Policy Article
  • A56580Billing and Coding: Computerized Axial Tomography (CT), Thorax
  • A56717Billing and Coding: Respiratory Therapy (Respiratory Care)
  • A56730Billing and Coding: Respiratory Therapy and Oximetry Services

Alphabetic index entries that lead here

  • Bronchiolitis›chemical(chronic)
  • Bronchitis›chemical›chronic
  • Bronchitis›chemical›due to fumes or vapors
  • Bronchitis›chronic›chemical(due to fumes or vapors)
  • Bronchitis›chemical›due to fumes or vapors›chronic
  • Bronchitis›chronic›due to›chemicals, gases, fumes or vapors(inhalation)
  • Disease, diseased›respiratory›chronic NOS›due to›chemicals, gases, fumes or vapors
  • Disease, diseased›respiratory›due to›chemicals, gases, fumes or vapors›chronic

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under J68

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.