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Official Description

Albumin; urine (eg, microalbumin), quantitative

© Copyright 2026 American Medical Association. All rights reserved.

Common Language Description

The CPT® Code 82043 refers to a laboratory test that quantifies the level of albumin in urine, specifically focusing on microalbumin levels. This test is crucial for monitoring kidney function, particularly in patients with diabetes, as it helps in the early detection of nephropathy, a common complication associated with diabetes. The procedure involves analyzing a urine sample to determine the precise amount of microalbumin present, which can indicate the onset of kidney damage. The test can be conducted using either a random urine sample, where the total volume and voiding time are recorded, or a 24-hour urine collection, which provides a comprehensive assessment of albumin excretion over an entire day. The quantitative nature of this test allows healthcare providers to track changes in microalbumin levels over time, facilitating timely interventions to prevent further renal impairment. In contrast, a related semi-quantitative test, identified by CPT® Code 82044, provides a general indication of elevated microalbumin levels through a color change reaction on a dipstick, but does not offer the precise measurement that CPT® Code 82043 provides.

© Copyright 2026 Coding Ahead. All rights reserved.

1. Indications

The test represented by CPT® Code 82043 is indicated for the following conditions:

  • Diabetes Mellitus This test is routinely performed annually on diabetic patients, particularly those with stable blood glucose levels, to monitor for early signs of nephropathy.
  • Assessment of Kidney Function The measurement of microalbumin levels in urine is essential for evaluating kidney function and detecting potential renal complications.

2. Procedure

The procedure for conducting the test under CPT® Code 82043 involves several key steps:

  • Sample Collection A urine sample is collected, which can either be a random sample or a 24-hour collection. For a random sample, the total volume of urine and the time of voiding must be noted to ensure accurate interpretation of results. In the case of a 24-hour collection, all urine produced over a 24-hour period is gathered to provide a comprehensive assessment of albumin excretion.
  • Testing Methodology The urine sample is then analyzed using the immunoturbidimetric technique, which measures the concentration of microalbumin in the urine. This method involves adding a reagent that reacts with the albumin present in the sample, leading to a measurable change in turbidity that correlates with the amount of albumin.
  • Result Interpretation The results of the test are reported quantitatively, indicating the exact level of microalbumin in the urine. This quantitative data is crucial for healthcare providers to assess kidney function and determine the need for further intervention or monitoring.

3. Post-Procedure

After the procedure, the healthcare provider will review the results of the microalbumin test. If elevated levels of microalbumin are detected, further evaluation and management may be necessary to address potential kidney issues. Patients may be advised on lifestyle modifications, medication adjustments, or additional testing to monitor kidney health. Regular follow-up appointments may be scheduled to track changes in microalbumin levels over time, ensuring timely intervention if kidney function declines.

Short Descr UR ALBUMIN QUANTITATIVE
Medium Descr URINE ALBUMIN QUANTITATIVE
Long Descr Albumin; urine (eg, microalbumin), quantitative
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) Yes
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 206 - Microscopic examination (bacterial smear, culture, toxicology)
QW Clia waived test
Q4 Service for ordering/referring physician qualifies as a service exemption
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.
GA Waiver of liability statement issued as required by payer policy, individual case
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.
GW Service not related to the hospice patient's terminal condition
X1 Continuous/broad services: for reporting services by clinicians, who provide the principal care for a patient, with no planned endpoint of the relationship; services in this category represent comprehensive care, dealing with the entire scope of patient problems, either directly or in a care coordination role; reporting clinician service examples include, but are not limited to: primary care, and clinicians providing comprehensive care to patients in addition to specialty care
GV Attending physician not employed or paid under arrangement by the patient's hospice provider
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.
GZ Item or service expected to be denied as not reasonable and necessary
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.
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
AQ Physician providing a service in an unlisted health professional shortage area (hpsa)
51 Multiple procedures: when multiple procedures, other than e/m services, physical medicine and rehabilitation services or provision of supplies (eg, vaccines), are performed at the same session by the same individual, the primary procedure or service may be reported as listed. the additional procedure(s) or service(s) may be identified by appending modifier 51 to the additional procedure or service code(s). note: this modifier should not be appended to designated "add-on" codes (see appendix d).
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.
77 Repeat procedure by another physician or other qualified health care professional: it may be necessary to indicate that a basic procedure or service was repeated by another physician or other qualified health care professional subsequent to the original procedure or service. this circumstance may be reported by adding modifier 77 to the repeated procedure or service. note: this modifier should not be appended to an e/m service.
95 Synchronous telemedicine service rendered via a real-time interactive audio and video telecommunications system: synchronous telemedicine service is defined as a real-time interaction between a physician or other qualified health care professional and a patient who is located at a distant site from the physician or other qualified health care professional. the totality of the communication of information exchanged between the physician or other qualified health care professional and the patient during the course of the synchronous telemedicine service must be of an amount and nature that would be sufficient to meet the key components and/or requirements of the same service when rendered via a face-to-face interaction. modifier 95 may only be appended to the services listed in appendix p. appendix p is the list of cpt codes for services that are typically performed face-to-face, but may be rendered via a real-time (synchronous) interactive audio and video telecommunications system.
AY Item or service furnished to an esrd patient that is not for the treatment of esrd
CC Procedure code change (use 'cc' when the procedure code submitted was changed either for administrative reasons or because an incorrect code was filed)
CG Policy criteria applied
CR Catastrophe/disaster related
GC This service has been performed in part by a resident under the direction of a teaching physician
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
KX Requirements specified in the medical policy have been met
LT Left side (used to identify procedures performed on the left side of the body)
PD Diagnostic or related non diagnostic item or service provided in a wholly owned or operated entity to a patient who is admitted as an inpatient within 3 days
PN Non-excepted service provided at an off-campus, outpatient, provider-based department of a hospital
Q0 Investigational clinical service provided in a clinical research study that is in an approved clinical research study
Q5 Service furnished under a reciprocal billing arrangement by a substitute physician or by a substitute physical therapist furnishing outpatient physical therapy services in a health professional shortage area, a medically underserved area, or a rural area
Q6 Service furnished under a fee-for-time compensation arrangement by a substitute physician or by a substitute physical therapist furnishing outpatient physical therapy services in a health professional shortage area, a medically underserved area, or a rural area
QE Prescribed amount of stationary oxygen while at rest is less than 1 liter per minute (lpm)
RT Right side (used to identify procedures performed on the right side of the body)
SA Nurse practitioner rendering service in collaboration with a physician
U6 Medicaid level of care 6, as defined by each state
XE Separate encounter, a service that is distinct because it occurred during a separate encounter
XS Separate structure, a service that is distinct because it was performed on a separate organ/structure
XU Unusual non-overlapping service, the use of a service that is distinct because it does not overlap usual components of the main service
Date
Action
Notes
2018-01-01 Changed Long medium and short descriptions changed.
2011-01-01 Changed Short description changed.
1993-01-01 Added First appearance in code book in 1993.
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