20606

Aspiration and/or injection of an intermediate joint or bursa — such as the wrist, elbow, ankle, acromioclavicular, temporomandibular, or olecranon bursa — performed with real-time ultrasound guidance and permanent image recording and reporting.

Verified May 8, 2026 · 7 sources ↓

Medicare: $94.19
Total RVUs: 2.82
Global, days: 0
Region: Multi-region

Drawn from CMSAAPCMdclarityPayerpriceFindacode

Documentation requirements

What must appear in the operative or office note to support the claim.

Source · Editorial brief grounded in 7 cited references ↓

Identify the specific joint or bursa injected by anatomic name (e.g., left olecranon bursa, right acromioclavicular joint)
Confirm ultrasound guidance was used in real time during needle placement — not just for pre-procedure localization
Permanent image storage and a formal report of the ultrasound findings must be documented and retained in the medical record
Document the substance injected or aspirated, volume, and needle approach (in-plane or out-of-plane)
Record the medical necessity: diagnosis driving the injection, prior treatment tried, and clinical indication
If same-day E/M is billed, the note must support a significant, separately identifiable evaluation beyond the routine pre-injection assessment

Applicable modifiers

Modifiers commonly billed with this code.

Source · AMA CPT modifier descriptors · CMS NCCI Policy Manual

25 Significant separate E/M 50 Bilateral procedure 59 Distinct service 76 Repeat, same physician 77 Repeat, another physician 78 Unplanned return — related 79 Unrelated during global LT Left side RT Right side XS Separate structure

What this code covers

Source · Editorial summary grounded in 7 cited references ↓

20606 covers arthrocentesis, aspiration, and/or injection at an intermediate-sized joint or bursa when ultrasound guidance is used throughout the procedure and a permanent record of the imaging is created and stored. Intermediate joints in this family include the wrist, elbow, ankle, acromioclavicular joint, temporomandibular joint, and olecranon bursa. The ultrasound component is bundled into this code — do not separately bill an imaging guidance code.

The global period is 000, meaning any post-procedure evaluation on the same day requires modifier 25 on the E/M to get paid. Because the global is zero days, follow-up visits the next day are not restricted — but the day-of E/M still needs that modifier if it's a separately identifiable service beyond the decision to inject.

When the procedure is performed on a single side, append LT or RT. Bilateral same-session injections use modifier 50. If you're stacking 20606 with a lower-tier injection code such as 20552 at a distinct anatomic structure on the same day, NCCI bundling edits apply — modifier 59 or XS may be needed to demonstrate separate structures, but document clearly and query the provider if the note doesn't explicitly name both sites.

RVU & reimbursement

Component RVUs and Medicare national rate. Actual payment varies by GPCI locality.

Source · CMS Physician Fee Schedule, RVU26A · January 2026

Work RVU	0.98
Practice expense RVU	1.72
Malpractice RVU	0.12
Total RVU	2.82
Medicare national rate	$94.19
Global period	0 days

Payment by site of service

Medicare pays different rates by setting. HOPD typically pays substantially more than ASC for the same procedure.

Source · CMS OPPS Addendum B·ASC HCPCS payment rates·2026

Setting	Medicare rate (national)
Office (PFS non-facility) Procedure performed in physician's office	$94.19
HOPD (APC 5442) Hospital outpatient department	$721.17
ASC (PI P3) Ambulatory surgical center (freestanding)	$57.74

Common denial reasons

The recurring reasons claims for CPT 20606 get rejected.

Source · Editorial brief grounded in CMS NCCI edits, AAOS coding appeals, and cited references ↓

Missing or insufficient ultrasound documentation — payers deny 20606 and downcode to 20605 when the note doesn't confirm real-time guidance with permanent recording
Laterality modifier absent — many payers, especially Medicare Advantage plans, require LT or RT and reject claims without it
Modifier 25 missing on same-day E/M — the 000 global causes the E/M to be bundled and denied without modifier 25
NCCI bundling conflict when 20606 is billed with 20552 or other injection codes on the same date without modifier 59 or XS documenting separate anatomic structures
Medical necessity not established — diagnosis codes that are too nonspecific or don't align with the injected structure trigger clinical review or denial

Frequently asked questions

Source · Generated from the editorial pipeline, verified against 7 cited references ↓

01What's the difference between 20605 and 20606?

20605 is the same intermediate joint injection without ultrasound guidance. 20606 requires real-time ultrasound during needle placement plus permanent image recording and a formal report. If your note doesn't document both of those elements, payers will downcode to 20605.

02Can I bill a separate ultrasound code alongside 20606?

No. The ultrasound guidance is bundled into 20606. Billing a separate imaging guidance code on the same date for the same joint will trigger an NCCI edit and denial.

03Do I need a laterality modifier for 20606?

Yes, for single-side injections append LT or RT. Most Medicare and commercial payers require laterality on joint injection codes and will reject or pend claims without it. For bilateral same-session injections, use modifier 50.

04Can 20606 and an E/M be billed on the same day?

Yes, but the E/M needs modifier 25. The 000 global period means the day-of E/M is otherwise bundled into the procedure. The note must support a significant, separately identifiable evaluation beyond the decision to inject.

05How do I handle NCCI bundling when 20606 and 20552 are performed the same day at different sites?

The NCCI edit exists because both codes involve injection procedures and can overlap. If the injections were genuinely at separate anatomic structures — for example, an elbow joint and a trigger point in the forearm — append modifier 59 or XS and ensure the operative note names both structures explicitly. A vague note is an audit risk.

06What joints fall under 'intermediate' for 20606?

The intermediate joint category includes the wrist, elbow, ankle, acromioclavicular joint, temporomandibular joint, and olecranon bursa. Fingers and toes are small joints (20604); knee, hip, and shoulder are large joints (20611).

07Is 20606 payable in an office setting?

Yes. Place of service 11 (office) is common for 20606. Note that the site of service affects the practice expense RVU — the non-facility rate is higher than the facility rate. See the Site of Service comparison table on this page.

Sources & references

Editorial content was developed using the following public sources. Last verified May 8, 2026.

Mira AI Scribe

Mira's AI scribe captures the joint or bursa name, laterality, real-time ultrasound confirmation, needle approach, injectate or aspirate details, and a statement that permanent images were recorded — the exact elements auditors and payers check when reviewing 20606 claims. That prevents the most common denial: a downcode to 20605 because the note failed to document real-time guidance with permanent recording.

See how Mira captures CPT 20606 documentation