ICD-10 J98.4
Billable / SpecificOther disorders of lung
About ICD-10-CM J98.4
ICD-10-CM code J98.4 represents Other disorders of lung. This is a billable/specific code in the Respiratory System chapter (block J98). The 2026 edition of ICD-10-CM J98.4 became effective on October 1, 2025.
Inclusion Terms / Approximate Synonyms
Clinical terms and conditions classified under J98.4. Per CMS ICD-10-CM Tabular 2026.
- Calcification of lung
- Cystic lung disease (acquired)
- Lung disease NOS
- Pulmolithiasis
Type 1 Excludes
Pure excludes, these codes can never be coded together with J98.4. The conditions are mutually exclusive (e.g., congenital vs acquired forms).
- acute interstitial pneumonitis (J84.114)
- pulmonary insufficiency following surgery (J95.1-J95.2)
Medicare LCD Coverage for J98.4
Local Coverage Determinations (LCDs) from CMS MACs that list J98.4 as a covered diagnosis.
Showing top 10 of 102 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing J98.4.
1 Cigna
5 Medicare
3 Aetna
CPT Codes Commonly Billed with J98.4
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
- 71250 CT chest without contrast — pulmonary nodule, lung mass, lung cancer, pulmonary mets, chronic cough, dyspnea, pneumothorax, PE, lung disease, hx lung cancer, bronchial neoplasm Radiology
- 71260 CT chest with contrast — pulmonary embolism, chest pain, dyspnea, wheezing, pulmonary HTN, lung cancer, nodule, thrombophilia Radiology
- 94010 Spirometry — asthma all severity, COPD, COPD with exacerbation, dyspnea, wheezing, chronic cough, pulmonary disease, pulmonary fibrosis Pulmonology
- 94060 Spirometry pre and post bronchodilator — asthma diagnosis/monitoring, dyspnea, wheezing, chronic cough Pulmonology
- 31622 Diagnostic bronchoscopy — pulmonary nodule, lung cancer, hemoptysis, lung disease, chronic cough, pneumonia, lung mets, abnormal sputum cytology Pulmonology
Convert J98.4 to ICD-9-CM
Per CMS General Equivalence Mappings (GEMs), useful for legacy data review and historical claim analysis.
| ICD-10 | ICD-9 | Mapping Flags |
|---|---|---|
| J98.4 | 51889 | 00000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To J98.4
Other codes in section J96-J99 (Other diseases of the respiratory system).
ICD-10 J98.4, Billing FAQ
Is ICD-10 code J98.4 billable? +
Yes, J98.4 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
What other names or terms map to J98.4? +
ICD-10 J98.4 includes: Calcification of lung; Cystic lung disease (acquired); Lung disease NOS, and 1 more clinical synonyms.
What codes are Type 1 Excludes for J98.4? +
Type 1 Excludes (never code together with J98.4): acute interstitial pneumonitis (J84.114); pulmonary insufficiency following surgery (J95.1-J95.2)
What CPT codes are commonly billed with J98.4? +
Procedures frequently paired with J98.4 include: 71250, 71260, 94010, 94060, 31622.
What ICD-9 codes does J98.4 map to? +
Per CMS GEMs, J98.4 maps to ICD-9 codes: 51889. Useful for legacy data review and historical claim analysis.
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on July 16, 2026.
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