ICD-10 R84.6
Billable / SpecificAbnormal cytological findings in specimens from respiratory organs and thorax
About ICD-10-CM R84.6
ICD-10-CM code R84.6 represents Abnormal cytological findings in specimens from respiratory organs and thorax. This is a billable/specific code in the Symptoms, Signs, and Abnormal Findings chapter (block R84). The 2026 edition of ICD-10-CM R84.6 became effective on October 1, 2025.
Medicare LCD Coverage for R84.6
Local Coverage Determinations (LCDs) from CMS MACs that list R84.6 as a covered diagnosis.
Showing top 10 of 15 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing R84.6.
1 Medicare
CPT Codes Commonly Billed with R84.6
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
- 31622 Diagnostic bronchoscopy — pulmonary nodule, lung cancer, hemoptysis, lung disease, chronic cough, pneumonia, lung mets, abnormal sputum cytology Pulmonology
Convert R84.6 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 |
|---|---|---|
| R84.6 | 7929 | 10000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To R84.6
Other codes in section R83-R89 (Abnormal findings on examination of other body fluids, substances and tissues, without diagnosis).
ICD-10 R84.6, Billing FAQ
Is ICD-10 code R84.6 billable? +
Yes, R84.6 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
What CPT codes are commonly billed with R84.6? +
Procedures frequently paired with R84.6 include: 31622.
What ICD-9 codes does R84.6 map to? +
Per CMS GEMs, R84.6 maps to ICD-9 codes: 7929. Useful for legacy data review and historical claim analysis.
Get the full PayerReady toolkit
Free access to CPT/ICD-10 lookup, denial appeals, fee comparator, and claim auditing with credentialing enrollment.
Start free →Run this code through our claim audit tool
Check NCCI bundling, MUE limits, and modifier logic before submission.
Try the auditor →Did this page help?
Quick signal so we know what to improve.
If you want a code reference page that doesn't exist yet, email coding@payerready.com.
Tell us what's missing or wrong: coding@payerready.com. We respond within 5 business days.
Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on May 31, 2026.
Powered by 11K CPT · 98K ICD-10 · 860K MPFS rates · 4.5M NCCI edits · 9.5M NPIs. Our data methodology · About our coding team