ICD-10-CM 2026 · Effective October 1, 2025

ICD-10 M65.931

Billable / Specific

Unspecified synovitis and tenosynovitis, right forearm

M65
Block
0
Synonyms
326
LCDs
8
Payer Policies
0
Linked CPTs

About ICD-10-CM M65.931

ICD-10-CM code M65.931 represents Unspecified synovitis and tenosynovitis, right forearm. This is a billable/specific code in the Musculoskeletal and Connective Tissue chapter (block M65). The 2026 edition of ICD-10-CM M65.931 became effective on October 1, 2025.

Medicare LCD Coverage for M65.931

Local Coverage Determinations (LCDs) from CMS MACs that list M65.931 as a covered diagnosis.

326 LCDs

Showing top 10 of 326 total . Click a CPT for full coverage scope.

CMS LCD: Billing and Coding: Pain Management - injection of tendon sheaths, ligaments, ganglion cysts, carpal and tarsal tunnels
Article ID: 52863, Effective: 2026-01-01 00:00:00, 245 covered, 0 non-covered
CPT 20526 →
CMS LCD: Billing and Coding: Pain Management - injection of tendon sheaths, ligaments, ganglion cysts, carpal and tarsal tunnels
Article ID: 52863, Effective: 2026-01-01 00:00:00, 245 covered, 0 non-covered
CPT 20561 →
CMS LCD: Billing and Coding: Pain Management - injection of tendon sheaths, ligaments, ganglion cysts, carpal and tarsal tunnels
Article ID: 52863, Effective: 2026-01-01 00:00:00, 245 covered, 0 non-covered
CPT 20612 →
CMS LCD: Billing and Coding: Pain Management - injection of tendon sheaths, ligaments, ganglion cysts, carpal and tarsal tunnels
Article ID: 52863, Effective: 2026-01-01 00:00:00, 245 covered, 0 non-covered
CPT 28899 →
CMS LCD: Billing and Coding: Pain Management - injection of tendon sheaths, ligaments, ganglion cysts, carpal and tarsal tunnels
Article ID: 52863, Effective: 2026-01-01 00:00:00, 245 covered, 0 non-covered
CPT 20550 →
CMS LCD: Billing and Coding: Pain Management - injection of tendon sheaths, ligaments, ganglion cysts, carpal and tarsal tunnels
Article ID: 52863, Effective: 2026-01-01 00:00:00, 245 covered, 0 non-covered
CPT 20551 →
CMS LCD: Billing and Coding: Pain Management - injection of tendon sheaths, ligaments, ganglion cysts, carpal and tarsal tunnels
Article ID: 52863, Effective: 2026-01-01 00:00:00, 245 covered, 0 non-covered
CPT 20560 →
CMS LCD: Billing and Coding: Pain Management - injection of tendon sheaths, ligaments, bursa, and ganglion cysts
Article ID: 60304, Effective: , 230 covered, 0 non-covered
CPT 20561 →
CMS LCD: Billing and Coding: Pain Management - injection of tendon sheaths, ligaments, bursa, and ganglion cysts
Article ID: 60304, Effective: , 230 covered, 0 non-covered
CPT 20612 →
CMS LCD: Billing and Coding: Pain Management - injection of tendon sheaths, ligaments, bursa, and ganglion cysts
Article ID: 60304, Effective: , 230 covered, 0 non-covered
CPT 20550 →

Commercial Payer Coverage

Coverage policies from major commercial payers referencing M65.931.

8 policies

5 Medicare

Billing and Coding: Infliximab and biosimilars
Policy ID: ART-52423
Billing and Coding: Pain Management - injection of tendon sheaths, ligaments, ganglion cysts, carpal and tarsal tunnels
Policy ID: ART-52863
Billing and Coding: Home Health Occupational Therapy
Policy ID: ART-53057
Billing and Coding: Home Health Physical Therapy
Policy ID: ART-53058
Billing and Coding: Outpatient Occupational Therapy
Policy ID: ART-53064

CPT Codes Commonly Billed with M65.931

Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.

No procedure linkages on file for M65.931

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.

ICD-10 M65.931, Billing FAQ

Is ICD-10 code M65.931 billable? +

Yes, M65.931 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.

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Reviewed by the PayerReady Medical Coding Team

Verified against the CMS 2026 code set on May 31, 2026.

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