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Unlisted Female Reproductive Procedure

Montana rates for HCPCS 58999

A procedure on the female reproductive organs — uterus, cervix, ovaries, fallopian tubes, vagina, or vulva — that has no standard named entry of its own and is not related to pregnancy or childbirth. It is used for uncommon, newly developed, or unusually modified operations. A written report describing exactly what was done goes with it.

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
$398.11
Median
$398.11
Typical High
$645.65