| Answer | 1 or 2 days | LA14481-8 |
| Answer | 3 to 5 days | LA15777-8 |
| Answer | 6 to 9 days | LA15778-6 |
| Answer | 10 to 19 days | LA15779-4 |
| Answer | 20 to 29 days | LA15780-2 |
| Answer | All 30 days | LA15781-0 |
| Answer | Don't know/refused | LA15775-2 |
| answers-for | What is your best estimate of the number of days you smoked part or all of a cigarette during the past 30 days [PhenX] | 63613-4 |
| LONG_COMMON_NAME | en-US | PhenX03_03_30d smoke freq |
LOINC Version: 2.77
FHIR