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J98.4

J98.4: Other disorders of lung

Billable / specific codeICD-10-CM

J98.4 is a billable, specific ICD-10-CM code for other disorders of lung. It is valid for submission on a claim.

Check J98.4 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.

  • acute interstitial pneumonitis (J84.114)
  • pulmonary insufficiency following surgery (J95.1-J95.2)

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

  • Calcification of lung
  • Cystic lung disease (acquired)
  • Lung disease NOS
  • Pulmolithiasis

Excludes1 inherited from the categories above J98.4

A category’s note binds every code beneath it.

Written on J98: Other respiratory disorders

  • newborn apnea (P28.4-)
  • newborn sleep apnea (P28.3-)

Excludes2 inherited from the categories above J98.4

Not part of this code, but both may be coded when both are present.

Written on J98: Other respiratory disorders

Other codes that can never be billed with J98.4

Their own Excludes1 notes name this code, so the conflict is not listed above.

  • Q33.0Congenital cystic lung

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Medicare coverage

J98.4 is named in 7 Medicare coverage policies: 7 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

  • A56580Billing and Coding: Computerized Axial Tomography (CT), Thorax
  • A56717Billing and Coding: Respiratory Therapy (Respiratory Care)
  • A56730Billing and Coding: Respiratory Therapy and Oximetry Services
  • A56767Billing and Coding: Heavy Metal Testing

Alphabetic index entries that lead here

  • Honeycomb lung
  • Pneumatocele(lung)
  • Pneumonitis(acute) (primary)
  • Pneumopathy NEC
  • Pulmolithiasis
  • Adhesions, adhesive›lung
  • Adhesions, adhesive›pulmonary
  • Atrophy, atrophic›lung(senile)
  • Calcification›lung(active) (postinfectional)
  • Calculus, calculi, calculous›lung
  • Calculus, calculi, calculous›pulmonary
  • Cavitation of lung›nontuberculous

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under J98

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.