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Z91.13

Patient's unintentional underdosing of medication regimen

Non-billableCategory

Code Hierarchy

Z91Z91.1Z91.13

Chapter: 21. Factors influencing health status and contact with health services

Section: Z77-Z99 - Persons with potential health hazards related to family and personal history and certain conditions influencing health status

Coding Guidelines

Code First

  • underdosing of medication (T36-T50) with fifth or sixth character 6

Specific Codes (2)

Z91.130Billable

Patient's unintentional underdosing of medication regimen due to age-related debility

Z91.138Billable

Patient's unintentional underdosing of medication regimen for other reason

Related Codes

Z91.11Category

Patient's noncompliance with dietary regimen

Z91.12Category

Patient's intentional underdosing of medication regimen

Z91.14Category

Patient's other noncompliance with medication regimen

Z91.15Category

Patient's noncompliance with renal dialysis

Z91.19Category

Patient's noncompliance with other medical treatment and regimen

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