Billing code 20551: Tendon injectionMedicare rate & RVUs

Injection at one tendon origin or insertion, commonly for focal tendinopathy or enthesopathy, is reported when treatment targets the attachment rather than its sheath.

CMS RVU26DEffective Oct 1, 2026109 payment localities120.7K Medicare services in 2024

Medicare pays $60.46 for 20551 nationally in the office and $33.07 in a hospital or facility. Local office rates run $54.45–$76.66.

Medicare rate · 20551

Tendon injection

Work RVUs
0.73
Total RVUs
1.81
Global days
000

National rate · 2026

$60.46

Office setting, before claim adjustments.

See every locality for 20551 →Billed by an NP, PA or therapist? →

Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.

On this page 10 sections
  1. Medicare rate
  2. What 20551 covers
  3. By payment locality
  4. Rate map
  5. How it’s calculated
  6. Payment rules
  7. Similar codes
  8. Related codes
  9. Billing questions
  10. Sources

What 20551 covers

This procedure delivers medication to one tendon origin or insertion to treat a localized condition such as tendinopathy or enthesopathy. A physician or other qualified clinician may perform it in an office or outpatient facility. A familiar example is an injection at the common extensor tendon origin for lateral epicondylitis. The target is the tendon’s attachment, not a tendon sheath or a muscle trigger point.

Report 20551 for one tendon origin or insertion; document the treated site, diagnosis, medication, and clinical rationale. The code includes the injection service, while medication may be separately reportable when applicable coding and payment requirements are met. CMS assigns a 0-day global period, so same-day preoperative and postoperative care is included. When multiple procedures are performed in the same session, the highest-valued procedure is paid in full and other procedures are subject to the standard 50% reduction. Modifier 50 is inappropriate for this code. Assistant-at-surgery services are not paid, and co-surgeon and team-surgery reporting are not permitted.

This summary was written with AI assistance from CMS physician fee schedule data and checked against the CMS billing rules shown here. Rates on this page come directly from CMS files.

Where 20551 pays more and less

The same RVUs, adjusted for each area’s costs. Open a locality for its calculation, history and nearby areas.

109 payment localities

$54.45 to $76.66

$54.45$65.56$76.66
One dot per payment locality, office / nonfacility. Hover a dot to see the locality; select it to open that rate.

109 of 109 payment localities

20551 office and facility rates by payment locality
Payment localityOfficeFacility
Alabama$55.12$31.16
Alaska*$73.62$44.45
Arizona$59.04$32.50
Arkansas$54.45$30.92
Atlanta$61.60$33.77
Austin$62.14$33.16
Bakersfield$63.08$33.06
Baltimore/Surr. Cntys$63.92$34.53
Beaumont$57.26$32.34
Brazoria$59.76$32.62

20551 rates by state

Office rate range in each state. Select a state to see its payment localities.

Explore a state

Local rates. Clear comparisons.

Hover or focus a tile to see its rate range. Select it to open the state’s fee schedule.

$54.45

$73.62

Color shows the midpoint of each state’s locality range.

View every state and territory as a table
20551 office rate range by state
State / territoryOffice rate rangeLocalities
AK$73.621
AL$55.121
AR$54.451
AZ$59.041
CA$62.84–$76.6629
CO$62.301
CT$64.081
DC$68.021
DE$59.911
FL$60.33–$65.913
GA$57.36–$61.602
GU$63.911
HI$63.911
IA$56.011
ID$56.381
IL$59.05–$64.254
IN$56.641
KS$55.921
KY$56.521
LA$56.50–$58.852
MA$62.07–$67.642
MD$60.88–$68.023
ME$56.77–$59.172
MI$57.89–$61.122
MN$59.541
MO$55.78–$58.863
MS$55.121
MT$60.451
NC$57.251
ND$58.871
NE$56.221
NH$61.491
NJ$64.76–$67.522
NM$58.221
NV$60.041
NY$57.99–$70.625
OH$57.571
OK$56.291
OR$59.53–$63.872
PA$57.57–$62.782
PR$60.781
RI$61.731
SC$57.521
SD$58.681
TN$56.181
TX$57.26–$62.148
UT$58.181
VA$59.10–$68.022
VI$60.781
VT$58.801
WA$61.90–$68.772
WI$57.201
WV$57.231
WY$59.761

How the 20551 rate is calculated

Each of 20551’s three RVUs is multiplied by a geographic index (GPCI) for the payment locality, added up, and multiplied by the conversion factor. Drag the indexes or enter a ZIP to see what moves the rate.

How the rate is built · 20551

RVUs × geographic indexes × conversion factor

Work0.73

0.73 RVUs× 1.000 GPCI

Practice expense1.00

1.00 RVUs× 1.000 GPCI

Malpractice0.08

0.08 RVUs× 1.000 GPCI

Adjusted RVUs

1.8100

Conversion factor

$33.4009

Medicare rate

$60.46

Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.

Payment rules and modifiers for 20551

The CMS indicators that decide how 20551 is paid alongside other services.

CMS payment indicators · 20551

Tendon injection

RuleCMS valueWhat it means
Global period000Same-day global: pre- and post-op care on the day of the procedure is included.
Multiple procedures2Standard reduction: highest-valued procedure at 100%, others at 50%.
Bilateral (modifier 50)0The 150% bilateral adjustment doesn’t apply.
Assistant at surgery (80/81/82/AS)1Not paid (statutory restriction).
Co-surgeons (62)0Not permitted.
Team surgery (66)0Not permitted.
Professional/technical0Physician service: no professional/technical split.

What modifiers do to the payment

Modifier 51 · payment effect

With and without the modifier

20551 without 51 · national office

$60.46

Tendon injection

20551-51 · Second procedure: 50%

$30.23

When this isn’t the highest-valued procedure in the session, Medicare pays 50% of its fee schedule amount (the highest is paid at 100%).

When to use modifier 51

20551 compared with similar codes

Compare codes · National

4 codes, side by side

  • 20551

    Tendon injection0.73 wRVU

    $60.46

  • 20550

    Tendon sheath injection0.73 wRVU

    $60.46+$0.00

  • 20552

    Trigger point injection0.64 wRVU

    $51.77−$8.69

  • 20553

    Trigger point injection0.73 wRVU

    $59.79−$0.67

How to choose

20550Tendon sheath injection
Choose 20551 for a tendon origin or insertion; choose 20550 when the injection is into a tendon sheath or ligament.
20552Trigger point injection
20552 is for trigger-point injection involving one or two muscles, not injection at a tendon attachment.
20553Trigger point injection
20553 is for trigger-point injection involving three or more muscles; 20551 targets one tendon origin or insertion.

20551 billing questions

How is 20551 different from 20550?

Use 20551 when the injection targets a tendon origin or insertion. Code 20550 describes an injection into a tendon sheath or ligament.

Can 20551 be used for a trigger-point injection?

No. Trigger-point injections are reported with 20552 or 20553 according to the number of muscles treated; 20551 targets a tendon attachment.

What documentation supports 20551?

Record the specific tendon origin or insertion, the condition treated, and the medication administered. The note should make clear that the target was the attachment rather than a tendon sheath or trigger point.

How should multiple injections at the same tendon attachment be counted?

The code describes treatment of one tendon origin or insertion, not the number of needle passes or medication aliquots. Document each distinct treated target and follow applicable unit-reporting requirements.

Can modifier 50 be reported for bilateral tendon injections?

Modifier 50 is inappropriate for 20551 under the CMS descriptor and anatomy rule. Follow applicable reporting requirements for separately documented sides.

How does CMS handle same-session procedures and assistants?

When multiple procedures occur in the same session, the highest-valued procedure is paid in full and the others are subject to the standard 50% reduction. Assistant-at-surgery services are not paid; co-surgeon and team-surgery reporting are not permitted.

Where these rates come from

FeeBase calculates base physician payments from CMS work, practice-expense and malpractice RVUs, adjusted by each locality’s geographic indexes and the conversion factor. Services without a published rate are labeled, never given a made-up amount. Amounts are Medicare allowed amounts before claim adjustments: not a patient’s bill or a commercial rate.

CMS RVU26D · effective Oct 1, 2026 through the day before Jan 1, 2027

Show the CMS file lines behind this rate
RVUs for 20551PPRRVU2026_Oct_nonQPP.csv, line 1,760 (RVU26D)

Open CMS sourceHow we calculate rates

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