Coding Ahead
CasePilot
Medical Coding Assistant
Case2Code
Search and Code Lookup Tool
CareerCenter
Medical Coding Job Board
Log in Register free account

Need help choosing the right code?

Ask CasePilot about procedures, modifiers, bundling, and coding guidance.

Try CasePilot

Official Description

Ketosteroids, 17- (17-KS); total

© Copyright 2026 American Medical Association. All rights reserved.

Common Language Description

The CPT® Code 83586 refers to a laboratory test specifically designed to measure the total concentration of 17-ketosteroids (17-KS) in urine. 17-ketosteroids are a group of steroid hormones that are produced as metabolites from adrenal hormones, including cortisol, cortisone, 11-desoxycortisol, and deoxycorticosterone, along with their tetrahydroderivatives. The presence of an hydroxyl group and a short carbon chain at the 17 position on the steroid nucleus characterizes these compounds. This test is particularly significant in the evaluation of various endocrine disorders. Elevated levels of 17-KS can indicate conditions such as adrenal hyperplasia, which may lead to precocious puberty, Cushing syndrome, obesity, and other pathological stress conditions like acute illness, infection, surgery, or burns. Conversely, decreased levels of 17-KS may suggest adrenal insufficiencies, such as Addison's disease, adrenocorticotropic hormone (ACTH) deficiency, or hypopituitarism. The test is conducted using a 24-hour urine sample, which is analyzed through quantitative spectrophotometry to ensure accurate measurement of the total 17-ketosteroids present. For more specific measurements, such as fractionated 17-ketosteroids, the CPT® Code 83593 should be utilized.

© Copyright 2026 Coding Ahead. All rights reserved.

1. Indications

The 17-ketosteroid (17-KS) test is indicated for the evaluation of various clinical conditions related to adrenal hormone production and metabolism. The following conditions may warrant the performance of this test:

  • Adrenal Hyperplasia This condition can lead to elevated levels of 17-KS, particularly in cases associated with precocious puberty.
  • Cushing Syndrome Elevated 17-KS levels may be observed in patients suffering from this disorder, which is characterized by excessive cortisol production.
  • Obesity The test may be utilized to assess hormonal imbalances that could contribute to obesity.
  • Pathological Stress Conditions Situations such as acute illness, infection, surgery, and burns can lead to increased levels of 17-KS, indicating a stress response from the adrenal glands.
  • Addison's Disease In this condition, decreased levels of 17-KS may be indicative of adrenal insufficiency.
  • ACTH Deficiency A lack of adrenocorticotropic hormone can result in lower levels of 17-KS, suggesting a disruption in adrenal function.
  • Hypopituitarism This condition may also lead to decreased production of adrenal hormones, reflected in lower 17-KS levels.

2. Procedure

The procedure for measuring total 17-ketosteroids in urine involves several key steps to ensure accurate results. The first step is the collection of a 24-hour urine sample from the patient. This comprehensive collection period is crucial as it allows for the measurement of hormone levels over an entire day, providing a more accurate representation of the patient's adrenal function. Once the sample is collected, it is sent to a laboratory where it undergoes quantitative spectrophotometry analysis. This analytical technique measures the concentration of 17-KS in the urine by detecting the specific wavelengths of light absorbed by the steroid compounds. The results are then compiled and interpreted by healthcare professionals to assess the patient's adrenal hormone levels and identify any potential endocrine disorders.

3. Post-Procedure

After the 24-hour urine collection and subsequent analysis, patients may not require any specific post-procedure care, as the test is non-invasive and does not involve any physical intervention. However, it is essential for healthcare providers to discuss the results with the patient, as elevated or decreased levels of 17-KS can indicate underlying health issues that may require further investigation or treatment. Patients should be informed about the significance of their results and any necessary follow-up actions, including additional testing or referrals to specialists if indicated.

Short Descr ASSAY 17- KETOSTEROIDS
Medium Descr ASSAY OF KETOSTEROIDS 17- TOTAL
Long Descr Ketosteroids, 17- (17-KS); total
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.
Date
Action
Notes
2013-01-01 Changed Medium Descriptor changed.
Pre-1990 Added Code added.
Code
Description
CasePilot

Get instant expert-level medical coding assistance.

Ask about:
CPT Codes Guidelines Modifiers Crosswalks NCCI Edits Compliance Medicare Coverage
Example: "What is CPT code 99213?" or "Guidelines for E/M services"