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Z13.89
ICD-10-CM
Drug Screen

Find information on Drug Screen (Drug Testing) diagnosis coding, clinical documentation requirements, and healthcare billing guidelines. Learn about Urine Drug Screen and Toxicology Screen procedures, including proper medical coding and documentation for accurate reimbursement. This resource provides essential information for healthcare professionals on Drug Screen diagnostic testing.

Also known as

Drug Testing
Urine Drug Screen
Toxicology Screen

Diagnosis Snapshot

Key Facts
  • Definition : Lab test to detect specific drugs or their metabolites in a sample, typically urine.
  • Clinical Signs : Varies widely depending on the drug(s) used, from no symptoms to overdose.
  • Common Settings : Workplace, pain management clinics, addiction treatment, emergency rooms.

Related ICD-10 Code Ranges

Complete code families applicable to AAPC Z13.89 Coding
T50.90XA-T50.90XD

Poisoning by drugs, medicaments

Adverse effects from unspecified drugs, including screening for such.

Z71.4

Encounter for screening for drug use

Routine drug screening, not related to poisoning or overdose.

Z51.81

Encounter for drug counseling

Counseling for drug use, often associated with drug screening.

Code-Specific Guidance

Decision Tree for

Follow this step-by-step guide to choose the correct ICD-10 code.

Is the drug screen for employment purposes?

  • Yes

    Do not code. Drug screens for employment purposes are administrative and not coded.

  • No

    Is the drug screen for monitoring patient compliance?

Code Comparison

Related Codes Comparison

When to use each related code

Description
Detects presence of drugs in a sample.
Identifies specific alcohol metabolites.
Quantifies drug concentration for therapeutic monitoring.

Documentation Best Practices

Documentation Checklist
  • Document reason for drug screen (e.g., pre-employment, reasonable suspicion)
  • Specify drug classes tested (e.g., amphetamines, opioids, THC)
  • Record collection method (e.g., observed urine, hair)
  • Document chain of custody procedures if applicable
  • Note result interpretation (e.g., positive, negative, inconclusive)

Coding and Audit Risks

Common Risks
  • Unspecified Drug Class

    Coding lacks specificity. Document the drug class tested (e.g., opiates, amphetamines) for accurate coding and reimbursement.

  • Unconfirmed Diagnosis

    Drug screen ordering lacks clear medical necessity. Document the reason for testing to support medical necessity and avoid audit issues.

  • Missing Test Results

    Documentation lacks test results. Include both qualitative and quantitative results to support the diagnosis and ensure complete coding.

Mitigation Tips

Best Practices
  • Document specific drug(s) tested, reason, & medical necessity for accurate CPT codes.
  • Ensure clear chain of custody documentation for compliance & legal defensibility.
  • Use standardized terminology for drug names & results to improve data integrity.
  • Correlate drug screen results with patient history & clinical findings in documentation.
  • Query physician for clarification if drug screen indication or result is unclear.

Clinical Decision Support

Checklist
  • Verify reason for drug screen (e.g., pre-employment, reasonable suspicion, post-accident)
  • Confirm patient consent or legal authority for testing
  • Document specific drugs to be tested (e.g., 5-panel, 10-panel)
  • Ensure proper specimen collection & chain of custody procedures
  • Review & interpret results, correlate with clinical findings

Reimbursement and Quality Metrics

Impact Summary
  • **Reimbursement and Quality Metrics Impact Summary: Drug Screen (D)**
  • **Keywords:** Medical Billing, Coding Accuracy, CPT Codes, ICD-10 Codes, Drug Testing, Urine Drug Screen, Toxicology Screen, Hospital Reporting, Reimbursement Rates, Claim Denial Management, Quality Metrics, Healthcare Analytics
  • **Impact 1:** Accurate coding (e.g., CPT 80100-80307) maximizes reimbursement for drug screen tests.
  • **Impact 2:** Incorrect coding can lead to claim denials and lost revenue, impacting hospital finances.
  • **Impact 3:** Proper documentation supports medical necessity, reducing audit risks and improving compliance.
  • **Impact 4:** Drug screen data informs quality metrics related to substance use disorder prevalence and treatment.

Streamline Your Medical Coding

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Frequently Asked Questions

Common Questions and Answers

Q: How to interpret a positive urine drug screen result for benzodiazepines in an elderly patient with no history of benzodiazepine prescription?

A: Interpreting a positive urine drug screen for benzodiazepines in an elderly patient without a prescription history requires careful consideration of several factors. While it could indicate undisclosed use or accidental ingestion, it's crucial to consider potential sources of false positives. Certain medications, like sertraline or oxaprozin, can cross-react in immunoassays. Additionally, consider the patient's cognitive status and the possibility of intentional or unintentional ingestion of another individual's medication. A thorough medication reconciliation, including over-the-counter and herbal supplements, is essential. If the clinical picture remains unclear, confirmatory testing with a more specific method like gas chromatography-mass spectrometry (GC-MS) is recommended to definitively identify the substance and rule out false positives. Explore how integrating comprehensive medication reviews can improve diagnostic accuracy in elderly patients. Consider implementing standardized procedures for addressing unexpected positive drug screen results.

Q: What are the best practices for pre-employment drug screening programs in healthcare settings to ensure compliance and mitigate legal risks?

A: Establishing a legally compliant and effective pre-employment drug screening program in healthcare requires attention to both federal and state regulations. Start by developing a clear, written policy outlining the program's purpose, procedures, and consequences of positive results. Ensure the policy adheres to relevant state laws regarding drug testing, including notification requirements and limitations on testing certain substances. Partnering with a reputable, certified laboratory is critical for ensuring accurate and reliable results. Maintain a chain-of-custody process to safeguard the integrity of samples and documentation. Address candidate privacy concerns by complying with HIPAA and other relevant regulations. Provide clear communication to candidates regarding the drug screening process, and consider implementing pre- and post-test counseling services. Learn more about developing a robust pre-employment drug screening policy tailored to the specific requirements of your healthcare organization.

Quick Tips

Practical Coding Tips
  • Document drug class
  • Code specific drug tested
  • Check medical necessity
  • Review payer guidelines
  • Correlate with diagnosis

Documentation Templates

Patient presented for a urine drug screen (UDS), also known as a drug test or toxicology screen, due to [reason for testing - e.g., pre-employment screening, reasonable suspicion, post-accident testing, monitoring compliance with treatment plan, etc.].  The patient denies current illicit drug use.  Patient reports [patient's reported medication use, including prescribed medications, over-the-counter medications, and supplements].  Urine sample was collected via [method of collection - e.g., observed collection, unobserved collection] on [date] at [time] and sent to [laboratory name] for analysis.  Preliminary results indicate [preliminary results - e.g., positive for amphetamines, negative for all tested substances, pending confirmation].  If applicable, confirmatory testing will be performed via [confirmatory testing method - e.g., gas chromatography-mass spectrometry (GC-MS)].  The results of this drug screening will be used to [purpose of testing - e.g., inform treatment decisions, determine eligibility for employment, assess compliance with court orders, etc.].  The patient was counseled on the importance of accurate reporting of medication use and the potential consequences of positive drug screen results.  Further evaluation and management will be based on the confirmed drug test results.  Relevant ICD-10 codes may include [relevant ICD-10 codes, e.g., Z13.83, Z79.891].  CPT codes for the laboratory analysis will be determined based on the specific drug panels performed (e.g., 80100, 80101, 80102).