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Unlisted Neck Or Chest Wall Operation

Montana rates for HCPCS 21899

Covers an operation on the neck or the chest wall for which there is no standard named service. The surgeon submits a written report describing exactly what was carried out, and the insurer prices it against comparable named operations. It is used only when no named procedure fits the work performed.

Rates data updated October 2026.

How much rates vary

Facilitymedian $200 · 10th to 90th $186 to $525Professionalmedian $79 · 10th to 90th $79 to $79
$100$200$500facility $200professional $79

Distribution of negotiated rates across all payers (price axis is log-scale). Small sample; interpret with caution. Need provider-level prices or 24+ months of history? Contact us.

Rates by insurance carrier

Insurance Carrier
Providence
Setting
Professional
Modifier
None
Typical Low
$79.43
Median
$79.43
Typical High
$79.43
United
Setting
Facility
Modifier
None
Typical Low
$186.21
Median
$199.53
Typical High
$524.81
1 more rate with less common billing modifiers

A modifier changes what was billed, for example a reduced or repeated service. Each of these modifiers carries under 10% of the published rates for this code. Modifier combinations, and modifiers with fewer than 30 rates for a carrier, are not listed.

Insurance Carrier
MountainHealth Co-op
Setting
Facility
Modifier
CSTM-00
Typical Low
$501.19
Median
$501.19
Typical High
$812.83