| Z13 | Encounter for screening for other diseases and disorders | NON-BILLABLE CODE |
| Z13.0 | Encounter for screening for diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism | BILLABLE CODE |
| Z13.1 | Encounter for screening for diabetes mellitus | BILLABLE CODE |
| Z13.2 | Encounter for screening for nutritional, metabolic and other endocrine disorders | NON-BILLABLE CODE |
| Z13.21 | Encounter for screening for nutritional disorder | BILLABLE CODE |
| Z13.22 | Encounter for screening for metabolic disorder | NON-BILLABLE CODE |
| Z13.220 | Encounter for screening for lipoid disorders | BILLABLE CODE |
| Z13.228 | Encounter for screening for other metabolic disorders | BILLABLE CODE |
| Z13.29 | Encounter for screening for other suspected endocrine disorder | BILLABLE CODE |
| Z13.3 | Encounter for screening examination for mental health and behavioral disorders | NON-BILLABLE CODE |
| Z13.30 | Encounter for screening examination for mental health and behavioral disorders, unspecified | BILLABLE CODE |
| Z13.31 | Encounter for screening for depression | BILLABLE CODE |
| Z13.32 | Encounter for screening for maternal depression | BILLABLE CODE |
| Z13.39 | Encounter for screening examination for other mental health and behavioral disorders | BILLABLE CODE |
| Z13.4 | Encounter for screening for certain developmental disorders in childhood | NON-BILLABLE CODE |
| Z13.40 | Encounter for screening for unspecified developmental delays | BILLABLE CODE |
| Z13.41 | Encounter for autism screening | BILLABLE CODE |
| Z13.42 | Encounter for screening for global developmental delays (milestones) | BILLABLE CODE |
| Z13.49 | Encounter for screening for other developmental delays | BILLABLE CODE |
| Z13.5 | Encounter for screening for eye and ear disorders | BILLABLE CODE |
| Z13.6 | Encounter for screening for cardiovascular disorders | BILLABLE CODE |
| Z13.7 | Encounter for screening for genetic and chromosomal anomalies | NON-BILLABLE CODE |
| Z13.71 | Encounter for nonprocreative screening for genetic disease carrier status | BILLABLE CODE |
| Z13.79 | Encounter for other screening for genetic and chromosomal anomalies | BILLABLE CODE |
| Z13.8 | Encounter for screening for other specified diseases and disorders | NON-BILLABLE CODE |
| Z13.81 | Encounter for screening for digestive system disorders | NON-BILLABLE CODE |
| Z13.810 | Encounter for screening for upper gastrointestinal disorder | BILLABLE CODE |
| Z13.811 | Encounter for screening for lower gastrointestinal disorder | BILLABLE CODE |
| Z13.818 | Encounter for screening for other digestive system disorders | BILLABLE CODE |
| Z13.82 | Encounter for screening for musculoskeletal disorder | NON-BILLABLE CODE |
| Z13.820 | Encounter for screening for osteoporosis | BILLABLE CODE |
| Z13.83 | Encounter for screening for respiratory disorder NEC | BILLABLE CODE |
| Z13.84 | Encounter for screening for dental disorders | BILLABLE CODE |
| Z13.85 | Encounter for screening for nervous system disorders | NON-BILLABLE CODE |
| Z13.850 | Encounter for screening for traumatic brain injury | BILLABLE CODE |
| Z13.858 | Encounter for screening for other nervous system disorders | BILLABLE CODE |
| Z13.88 | Encounter for screening for disorder due to exposure to contaminants | BILLABLE CODE |
| Z13.89 | Encounter for screening for other disorder | BILLABLE CODE |
| Z13.9 | Encounter for screening, unspecified | BILLABLE CODE |
