ICD Code Z91.018

ICD code Z91.018 is a code used to indicate a patient's noncompliance with medical treatment and regimen for reasons other than those specified elsewhere, such as personal beliefs or other unspecified reasons.

1. Patient has a documented history of nonadherence to medical treatment or regimen.

2. Nonadherence is due to reasons other than financial hardship or intentional refusal.

3. The nonadherence is not specified as being related to medication, diet, or therapy.

4. The behavior is recurrent or ongoing, not a one-time occurrence.

5. The nonadherence is clinically relevant and impacts the patient’s care plan or outcomes.

6. The provider has assessed and ruled out other specific reasons for nonadherence that have their own codes.

Applicable CPT codes for ICD code Z91.018 may include:

- 99401–99404 (Preventive medicine counseling and/or risk factor reduction intervention)

- 99406–99407 (Smoking and tobacco use cessation counseling visit)

- 99408–99409 (Alcohol and/or substance abuse structured screening and brief intervention services)

- 96160 (Administration of patient-focused health risk assessment instrument)

- 96161 (Administration of caregiver-focused health risk assessment instrument)

- 99201–99215 (Evaluation and management services, depending on patient status and complexity)

Always confirm CPT code selection based on the specific clinical scenario and payer guidelines.

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