Surgical · Other

Therapeutic manipulation of the temporomandibular joint requiring general anesthesia or monitored anesthesia care (MAC) to reduce muscle tone and allow effective joint mobilization.

Verified May 8, 2026 · 6 sources ↓

Medicare: $429.87
Work RVU: 3.36
Global, days: 90
Region: Other

Drawn from AaomsAetnaMdclarityAAPCCgsmedicare

Documentation requirements

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

Source · Editorial brief grounded in 6 cited references ↓

Specify anesthesia type used (general anesthesia vs. monitored anesthesia care/MAC) — 'anesthesia given' alone is insufficient
Document laterality: left TMJ, right TMJ, or bilateral
Record ICD-10 diagnosis from M26.601–M26.69 range with specificity matching clinical findings
Document failure or inadequacy of prior conservative treatment (splints, physical therapy, medications) to support medical necessity
Operative or procedure note must describe the manipulation technique and joint response, not just 'TMJ manipulation performed'
Confirm facility setting (outpatient hospital or ASC) — Medicare does not reimburse this code in POS 11 (office)

Applicable modifiers

Modifiers commonly billed with this code.

Source · AMA CPT modifier descriptors · CMS NCCI Policy Manual

22 Increased complexity 50 Bilateral procedure 51 Multiple procedures 58 Staged or related 59 Distinct service 78 Unplanned return — related 79 Unrelated during global 80 Assistant surgeon AS PA/NP/CNS assistant LT Left side RT Right side

What this code covers

Source · Editorial summary grounded in 6 cited references ↓

CPT 21073 covers therapeutic TMJ manipulation performed under a formal anesthesia service — either general anesthesia or monitored anesthesia care (MAC). The anesthesia component is necessary to overcome muscular guarding and protective reflexes that would otherwise prevent adequate joint mobilization. This is not a sedation-only scenario; the descriptor requires an anesthesia service, meaning the anesthesia is billed separately by the anesthesia provider using an appropriate anesthesia code (00170 or 00190). The 21073 RVU does not include the anesthesia work.

The code carries a 90-day global period. Per AAOMS guidance and CMS policy, TMJ surgical procedures in this range appear on the ASC Covered Procedures List, meaning Medicare reimburses them only in a facility setting (outpatient hospital or ASC) — not the office. Aetna covers 21073 when selection criteria are met under ICD-10 M26.601–M26.69 (temporomandibular joint disorders); always check payer-specific LCDs and NCDs before assuming coverage, as criteria vary.

Bilateral TMJ manipulation — both joints manipulated at the same encounter — is reported with modifier 50. If performed during the global period of a prior TMJ procedure and unrelated to it, append modifier 79. If staged as part of a planned treatment sequence within an existing global, modifier 58 applies. Document laterality, the specific anesthesia type used, the clinical indication, and prior conservative treatment failure to support medical necessity and survive audit.

RVU & reimbursement

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

Source · CMS Physician Fee Schedule, RVU26A · January 2026

Work RVU vs. total RVU

The work RVU (3.36) is the surgeon's own effort — the figure physician pay and productivity targets are built on. The total RVU (12.87) adds practice overhead and malpractice, and is what drives the Medicare payment below.

Work RVU	3.36
Practice expense RVU	9.03
Malpractice RVU	0.48
Total RVU	12.87
Medicare national rate	$429.87
Global period	90 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	$429.87
HOPD (APC 5163) Hospital outpatient department	$1,585.19
ASC (PI P3) Ambulatory surgical center (freestanding)	$303.11

Common denial reasons

The recurring reasons claims for CPT 21073 get rejected.

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

Procedure billed with office place of service (POS 11) — Medicare requires facility setting for this code per the ASC Covered Procedures List
Missing or inadequate medical necessity documentation; payers including Aetna require prior conservative treatment failure before authorizing 21073
Anesthesia service not separately billed or documentation doesn't distinguish general anesthesia/MAC from moderate sedation (99144), which changes coding entirely
Laterality not documented when modifier 50 is appended for bilateral manipulation — payers require chart support for both sides
Claim submitted during global period of a related prior TMJ procedure without the correct modifier (58 for staged, 79 for unrelated)

Frequently asked questions

Source · Generated from the editorial pipeline, verified against 6 cited references ↓

01Does the 21073 RVU include the anesthesia service?

No. The anesthesia provider bills separately using an appropriate anesthesia code (typically 00170 or 00190). The 21073 RVU covers the surgical manipulation work only.

02Can 21073 be billed in an office setting (POS 11)?

Not for Medicare. CMS places 21073 on the ASC Covered Procedures List, restricting reimbursement to outpatient hospital or ASC settings. Commercial payer rules vary — verify with each payer before scheduling.

03How do you bill bilateral TMJ manipulation at the same encounter?

Append modifier 50 to 21073. Document both joints in the operative note with laterality specified. Some payers instead require two line items with LT and RT; check payer-specific billing guidelines.

04Is moderate sedation (99144) an alternative to billing 21073?

No — the codes are mutually exclusive. 21073 requires a formal anesthesia service (general or MAC). If only moderate sedation was provided by the same performing provider, the procedure does not meet the 21073 descriptor and 99144 would apply to the sedation. Do not bill 21073 for sedation-only cases.

05What modifier applies if 21073 is performed during the global period of a prior TMJ procedure?

Use modifier 58 if the manipulation was planned as a staged part of the original treatment course. Use modifier 79 if it is a completely unrelated procedure performed during the global period. Do not use modifier 78 unless it was an unplanned return to the operating room for a complication related to the prior TMJ procedure.

06Which ICD-10 codes support medical necessity for 21073?

The M26.601–M26.69 range (temporomandibular joint disorders) is the primary supported diagnosis block. Aetna's CPB explicitly lists this range as covered when selection criteria are met. Code to the highest specificity available in the patient's record.

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 anesthesia type (general vs. MAC), specific joint(s) treated, manipulation technique performed, and pre-procedure conservative treatment history from dictation. This prevents the two most common 21073 denials: missing medical necessity support for anesthesia-level care and underdocumented laterality when modifier 50 or LT/RT is appended.

See how Mira captures CPT 21073 documentation