Cytogenetic and Genomic Tests
| Test type | CPT codes | Turnaround times (days) |
| Prenatal Testing | ||
| Chromosome Microarray Analysis using Targeted or High-density Microarray | 81228 | 5-10 14-21 (if specimen needs to be cultured) |
| G-banding karyotype on amniotic fluid | 88235, 88267, 88291 | 7-10 |
| G-banding karyotype on chorionic villi | 88235, 88267, 88280, 88285, 88291 | 7-10 |
| G-banding karyotype on PUBS | 88230, 88262, 88291 | 2-3 |
| Aneuploidy IFISH panel | 88271 x 2 | 1-2 |
| Postnatal Testing | ||
| Chromosome Microarray Analysis using High-density Microarray | 81228 | 14-28 |
| G-banding karyotype on peripheral blood | 88230, 88262, 88291 | 7-10 |
| G-banding karyotype ontissue (e.g. products of conception) | 88233, 88262, 88291 | 10-14 |
| G-banding karyotype for family follow-up | 88230, 88261, 88291 | 7-10 |
| Newborn STAT G-banding karyotype on peripheral blood | 88230, 88262, 88291 | 2-3 (preliminary); 7-10 (final) |
| Newborn STAT IFISH aneuploidy | 88271, 88275 | 2-3 (preliminary); 7-10 (final) |
| FISH for microdeletions | 88230, 88271, 88273, 88291 | 7-10 |
| G-banding mosaicism or X inactivation study | 88230, 88263 , 88291 | 10-14 |
| Chromosome breakage study | 88230, 88248, 88249, 88291 | 10-14 |
| Y-PCR analysis | 81403 | 10-14 |
| Neoplasia Testing | ||
| Oncology Chromosome Microarray Analysis (fresh or frozen specimens) | 81229 | 5-10 |
| Oncology Chromosome Microarray Analysis (formalin fixed paraffin embedded, FFPE) | 81229 | 7-21 |
| G-banding karyotype on bone marrow, bone core, leukemic blood, or lymph node | 88237, 88264, 88291 | 5-7 |
| G-banding karyotype on solid tumor | 88239, 88264, 88291 | 14-21 |
| IFISH study on fresh specimen | 88271, 88275 (per 200 cells) | 1-3 |
| IFISH study on FFPE | 88271, 88275 (per 200 cells) | 3-5 |
| Additional IFISH probes | 88271, 88275 (per 200 cells) | 1-3 |
| Urovysion IFISH panel | 88271x4, 88274, 88291 | 3-5 |
Note: **Turnaround times are averaged; some cases may be delayed due to slower than usual cell growth, incomplete paperwork, or other circumstances beyond the Laboratory’s control.