ICD-10 I89.9
Billable / SpecificNoninfective disorder of lymphatic vessels and lymph nodes, unspecified
About ICD-10-CM I89.9
ICD-10-CM code I89.9 represents Noninfective disorder of lymphatic vessels and lymph nodes, unspecified. This is a billable/specific code in the Circulatory System chapter (block I89). The 2026 edition of ICD-10-CM I89.9 became effective on October 1, 2025.
Inclusion Terms / Approximate Synonyms
Clinical terms and conditions classified under I89.9. Per CMS ICD-10-CM Tabular 2026.
- Disease of lymphatic vessels NOS
Medicare LCD Coverage for I89.9
Local Coverage Determinations (LCDs) from CMS MACs that list I89.9 as a covered diagnosis.
This doesn't mean the code isn't covered, it means no MAC has issued a Local Coverage Determination naming this specific code. Coverage may still apply under National Coverage Determinations or general medical-necessity rules.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing I89.9.
1 Cigna
1 Aetna
CPT Codes Commonly Billed with I89.9
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
We don't have CPT pairings indexed for this specific code yet. Use the CPT search above to find common procedures, or check your payer's published medical policy for code-specific guidance.
Convert I89.9 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 |
|---|---|---|
| I89.9 | 4579 | 00000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To I89.9
Other codes in section I80-I89 (Diseases of veins, lymphatic vessels and lymph nodes, not elsewhere classified).
ICD-10 I89.9, Billing FAQ
Is ICD-10 code I89.9 billable? +
Yes, I89.9 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 I89.9? +
ICD-10 I89.9 includes: Disease of lymphatic vessels NOS.
What ICD-9 codes does I89.9 map to? +
Per CMS GEMs, I89.9 maps to ICD-9 codes: 4579. 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 July 16, 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