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The CPT® Code 82340 refers to a laboratory test that quantifies the levels of calcium in a timed urine specimen. Calcium is a vital mineral that plays several critical roles in the body, including maintaining bone health, facilitating heart function, enabling muscle contraction, supporting nerve signaling, and aiding in blood clotting. While the majority of calcium is stored in the bones, a small fraction circulates in the bloodstream, with only about half of that being metabolically active. The remainder is either bound to proteins such as albumin or complexed with phosphate. Under normal circumstances, the body excretes small amounts of calcium through urine. The measurement of urine calcium levels is particularly important when a patient exhibits abnormal serum calcium levels, as elevated urine calcium can assist in the differential diagnosis of conditions such as parathyroid disorders and familial hypocalciuric hypercalcemia (FHH). Additionally, intermittent monitoring of urine calcium levels can be beneficial in guiding the treatment of these disorders. To perform this test, a random, timed, or 24-hour urine sample is collected, which can be obtained through either a voided specimen or catheterization. The analysis of the urine sample is conducted using quantitative spectrophotometry, a method that allows for precise measurement of calcium concentration in the urine.
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The urine calcium quantitative test (CPT® Code 82340) is indicated for the evaluation of various conditions related to calcium metabolism. The following are specific indications for performing this test:
The procedure for obtaining a urine calcium quantitative test involves several key steps, which are outlined below:
After the urine calcium quantitative test is completed, the patient may be advised on any necessary follow-up actions based on the results. If elevated calcium levels are detected, further diagnostic testing may be warranted to determine the underlying cause. The healthcare provider may also discuss potential treatment options or lifestyle modifications to manage calcium levels effectively. It is important for patients to understand the significance of their test results and to maintain communication with their healthcare provider regarding any ongoing symptoms or concerns related to calcium metabolism.
| Short Descr | ASSAY OF CALCIUM IN URINE | Medium Descr | CALCIUM URINE QUANTITATIVE TIMED SPECIMEN | Long Descr | Calcium; urine quantitative, timed specimen | Status Code | Statutory Exclusion (from MPFS, may be paid under other methodologies) | Global Days | XXX - Global Concept Does Not Apply | PC/TC Indicator (26, TC) | 9 - Not Applicable | Multiple Procedures (51) | 9 - Concept does not apply. | Bilateral Surgery (50) | 9 - Concept does not apply. | Physician Supervisions | 09 - Concept does not apply. | Assistant Surgeon (80, 82) | 9 - Concept does not apply. | Co-Surgeons (62) | 9 - Concept does not apply. | Team Surgery (66) | 9 - Concept does not apply. | Diagnostic Imaging Family | 99 - Concept Does Not Apply | CLIA Waived (QW) | No | APC Status Indicator | Conditionally packaged laboratory tests | Type of Service (TOS) | 5 - Diagnostic Laboratory | Berenson-Eggers TOS (BETOS) | T1H - Lab tests - other (non-Medicare fee schedule) | MUE | 1 | CCS Clinical Classification | 233 - Laboratory - Chemistry and Hematology |
| 90 | Reference (outside) laboratory: when laboratory procedures are performed by a party other than the treating or reporting physician or other qualified health care professional, the procedure may be identified by adding modifier 90 to the usual procedure number. | 91 | Repeat clinical diagnostic laboratory test: in the course of treatment of the patient, it may be necessary to repeat the same laboratory test on the same day to obtain subsequent (multiple) test results. under these circumstances, the laboratory test performed can be identified by its usual procedure number and the addition of modifier 91. note: this modifier may not be used when tests are rerun to confirm initial results; due to testing problems with specimens or equipment; or for any other reason when a normal, one-time, reportable result is all that is required. this modifier may not be used when other code(s) describe a series of test results (eg, glucose tolerance tests, evocative/suppression testing). this modifier may only be used for laboratory test(s) performed more than once on the same day on the same patient. | GA | Waiver of liability statement issued as required by payer policy, individual case | 26 | Professional component: certain procedures are a combination of a physician or other qualified health care professional component and a technical component. when the physician or other qualified health care professional component is reported separately, the service may be identified by adding modifier 26 to the usual procedure number. | 59 | Distinct procedural service: under certain circumstances, it may be necessary to indicate that a procedure or service was distinct or independent from other non-e/m services performed on the same day. modifier 59 is used to identify procedures/services, other than e/m services, that are not normally reported together, but are appropriate under the circumstances. documentation must support a different session, different procedure or surgery, different site or organ system, separate incision/excision, separate lesion, or separate injury (or area of injury in extensive injuries) not ordinarily encountered or performed on the same day by the same individual. however, when another already established modifier is appropriate it should be used rather than modifier 59. only if no more descriptive modifier is available, and the use of modifier 59 best explains the circumstances, should modifier 59 be used. note: modifier 59 should not be appended to an e/m service. to report a separate and distinct e/m service with a non-e/m service performed on the same date, see modifier 25. | 76 | Repeat procedure or service by same physician or other qualified health care professional: it may be necessary to indicate that a procedure or service was repeated by the same physician or other qualified health care professional subsequent to the original procedure or service. this circumstance may be reported by adding modifier 76 to the repeated procedure or service. note: this modifier should not be appended to an e/m service. | GV | Attending physician not employed or paid under arrangement by the patient's hospice provider | GW | Service not related to the hospice patient's terminal condition | GY | Item or service statutorily excluded, does not meet the definition of any medicare benefit or, for non-medicare insurers, is not a contract benefit | Q1 | Routine clinical service provided in a clinical research study that is in an approved clinical research study | Q3 | Live kidney donor surgery and related services |
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