| Z91.11 | Patient's noncompliance with dietary regimen | NON-BILLABLE CODE |
| Z91.110 | Patient's noncompliance with dietary regimen due to financial hardship | BILLABLE CODE |
| Z91.118 | Patient's noncompliance with dietary regimen for other reason | BILLABLE CODE |
| Z91.119 | Patient's noncompliance with dietary regimen due to unspecified reason | BILLABLE CODE |
| Z91.12 | Patient's intentional underdosing of medication regimen | NON-BILLABLE CODE |
| Z91.120 | Patient's intentional underdosing of medication regimen due to financial hardship | BILLABLE CODE |
| Z91.128 | Patient's intentional underdosing of medication regimen for other reason | BILLABLE CODE |
| Z91.13 | Patient's unintentional underdosing of medication regimen | NON-BILLABLE CODE |
| Z91.130 | Patient's unintentional underdosing of medication regimen due to age-related debility | BILLABLE CODE |
| Z91.138 | Patient's unintentional underdosing of medication regimen for other reason | BILLABLE CODE |
| Z91.14 | Patient's other noncompliance with medication regimen | NON-BILLABLE CODE |
| Z91.141 | Patient's other noncompliance with medication regimen due to financial hardship | BILLABLE CODE |
| Z91.148 | Patient's other noncompliance with medication regimen for other reason | BILLABLE CODE |
| Z91.15 | Patient's noncompliance with renal dialysis | NON-BILLABLE CODE |
| Z91.151 | Patient's noncompliance with renal dialysis due to financial hardship | BILLABLE CODE |
| Z91.158 | Patient's noncompliance with renal dialysis for other reason | BILLABLE CODE |
| Z91.19 | Patient's noncompliance with other medical treatment and regimen | NON-BILLABLE CODE |
| Z91.190 | Patient's noncompliance with other medical treatment and regimen due to financial hardship | BILLABLE CODE |
| Z91.198 | Patient's noncompliance with other medical treatment and regimen for other reason | BILLABLE CODE |
| Z91.199 | Patient's noncompliance with other medical treatment and regimen due to unspecified reason | BILLABLE CODE |
