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ALL MEDICAL CODES IN CATEGORY Molecular Pathology Procedures

2025 CPT code 81273

KIT (v-kit Hardy-Zuckerman 4 feline sarcoma viral oncogene homolog) (eg, mastocytosis), gene analysis, D816 variant(s).

2025 CPT code 81323

PTEN (phosphatase and tensin homolog) (eg, Cowden syndrome, PTEN hamartoma tumor syndrome) gene analysis; duplication/deletion variant

2025 CPT code 81331

Methylation analysis of SNRPN and UBE3A genes (e.g., for Prader-Willi and/or Angelman syndromes).

2025 CPT code 81232

Analysis of common variants in the dihydropyrimidine dehydrogenase (DPYD) gene (e.g., *2A, *4, *5, *6) to assess drug metabolism, primarily for 5-fluorouracil (5-FU) and capecitabine.

2025 CPT code 81246

Analysis of FLT3 gene for tyrosine kinase domain (TKD) variants.

2025 CPT code 81361

Analysis of the HBB gene for common variants (e.g., HbS, HbC, HbE).

2025 CPT code 81194

Analysis of NTRK1, NTRK2, and NTRK3 gene translocations.

2025 CPT code 81178

Analysis of the ATXN1 gene to detect abnormal alleles, specifically expanded sequences, often associated with spinocerebellar ataxia type 1 (SCA1).

2025 CPT code 81208

Analysis of BCR/ABL1 gene sequences at breakpoints other than major or minor, qualitative or quantitative.

2025 CPT code 81259

Full gene sequence analysis of HBA1/HBA2 genes (alpha globin 1 and alpha globin 2) related to alpha thalassemia and some hemoglobinopathies.

2025 CPT code 81164

BRCA1 and BRCA2 gene analysis; full duplication/deletion analysis.

2025 CPT code 81183

Analysis of the ATXN10 gene to detect abnormal alleles, particularly expanded sequences.

2025 CPT code 81257

Analysis of HBA1/HBA2 genes (alpha globin 1 and 2) for common deletions or variants associated with alpha thalassemia and other hemoglobinopathies.

2025 CPT code 81242

Analysis of the FANCC gene for common variants, such as IVS4+4A>T, associated with Fanconi anemia.

2025 CPT code 81317

Analysis of the entire PMS2 gene sequence.

2025 CPT code 81204

Analysis of the androgen receptor (AR) gene to characterize alleles, such as expanded size or methylation status.

2025 CPT code 81291

Analysis of common variants in the MTHFR gene.

2025 CPT code 81108

This code represents Human Platelet Antigen 4 (HPA-4) genotyping, analyzing common variants HPA-4a/b (R143Q) in the ITGB3 gene.The test aids in diagnosing conditions such as neonatal alloimmune thrombocytopenia (NAIT).

2025 CPT code 81248

Analysis of known familial variants in the glucose-6-phosphate dehydrogenase (G6PD) gene.

2025 CPT code 81231

Analysis of common CYP3A5 gene variants (*2, *3, *4, *5, *6, *7) impacting drug metabolism.

2025 CPT code 81229

Cytogenomic (genome-wide) microarray analysis for constitutional chromosomal abnormalities; interrogation of genomic regions for copy number and single nucleotide polymorphism (SNP) variants.

2025 CPT code 81355

Analysis of VKORC1 gene for common variants related to warfarin metabolism.

2025 CPT code 81210

BRAF (B-Raf proto-oncogene, serine/threonine kinase) gene analysis for V600 variant(s).

2025 CPT code 81383

HLA Class II typing, high resolution (ie, alleles or allele groups); one allele or allele group (eg, HLA-DQB1*06:02P), each

2025 CPT code 81121

IDH2 (isocitrate dehydrogenase 2 [NADP+], mitochondrial) (eg, glioma), common variants (eg, R140W, R172M).

2025 CPT code 81377

HLA Class II typing, low resolution (e.g., antigen equivalents); one antigen equivalent, each.

2025 CPT code 81272

KIT (v-kit Hardy-Zuckerman 4 feline sarcoma viral oncogene homolog) (e.g., gastrointestinal stromal tumor [GIST], acute myeloid leukemia, melanoma), gene analysis, targeted sequence analysis (e.g., exons 8, 11, 13, 17, 18).

2025 CPT code 81238

F9 (coagulation factor IX) (eg, hemophilia B), full gene sequence

2025 CPT code 81230

Analysis of the CYP3A4 gene for common variants (e.g., *2, *22) to assess drug metabolism.

2025 CPT code 81247

G6PD (glucose-6-phosphate dehydrogenase) (eg, hemolytic anemia, jaundice), gene analysis; common variant(s) (eg, A, A-)

2025 CPT code 81329

SMN1 (survival of motor neuron 1, telomeric) (e.g., spinal muscular atrophy) gene analysis; dosage/deletion analysis (e.g., carrier testing), includes SMN2 (survival of motor neuron 2, centromeric) analysis, if performed.

2025 CPT code 81357

U2AF1 (U2 small nuclear RNA auxiliary factor 1) gene analysis, common variants (e.g., S34F, S34Y, Q157R, Q157P).

2025 CPT code 81360

ZRSR2 (zinc finger CCCH-type, RNA binding motif and serine/arginine-rich 2) (eg, myelodysplastic syndrome, acute myeloid leukemia) gene analysis, common variant(s) (eg, E65fs, E122fs, R448fs).

2025 CPT code 81372

HLA Class I typing, low resolution (e.g., antigen equivalents); complete (i.e., HLA-A, -B, and -C)

2025 CPT code 81379

HLA Class I typing, high resolution (ie, alleles or allele groups); complete (ie, HLA-A, -B, and -C)

2025 CPT code 81271

HTT (huntingtin) (e.g., Huntington disease) gene analysis; evaluation to detect abnormal (e.g., expanded) alleles

2025 CPT code 81316

PML/RARalpha,(t(15;17)), (promyelocytic leukemia/retinoic acid receptor alpha) (eg, promyelocytic leukemia) translocation analysis; single breakpoint (eg, intron 3, intron 6 or exon 6), qualitative or quantitative. (For intron 3 and intron 6 [including exon 6 if performed] analysis, use 81315). (If both intron 6 and exon 6 are analyzed, without intron 3, use one unit of 81316)

2025 CPT code 81315

PML/RARalpha,(t(15;17)), (promyelocytic leukemia/retinoic acid receptor alpha) (eg, promyelocytic leukemia) translocation analysis; common breakpoints (eg, intron 3 and intron 6), qualitative or quantitative

2025 CPT code 81275

KRAS (Kirsten rat sarcoma viral oncogene homolog) (eg, carcinoma) gene analysis; variants in exon 2 (eg, codons 12 and 13)

2025 CPT code 81380

HLA Class I typing, high resolution (ie, alleles or allele groups); one locus (eg, HLA-A, -B, or -C), each.

2025 CPT code 81402

Molecular pathology procedure, level 3.This includes analysis of >10 single nucleotide polymorphisms (SNPs), 2-10 methylated variants, 2-10 somatic variants, immunoglobulin and T-cell receptor gene rearrangements, duplication/deletion variants of one exon, loss of heterozygosity (LOH), and uniparental disomy (UPD).

2025 CPT code 81278

IGH@/BCL2 (t(14;18)) (eg, follicular lymphoma) translocation analysis, major breakpoint region (MBR) and minor cluster region (mcr) breakpoints, qualitative or quantitative.

2025 CPT code 81408

Molecular pathology procedure, Level 9 (eg, analysis of >50 exons in a single gene by DNA sequence analysis).

2025 CPT code 81107

Human Platelet Antigen 3 (HPA-3) genotyping, ITGA2B (integrin, alpha 2b [platelet glycoprotein IIb of IIb/IIIa complex], antigen CD41 [GPIIb]) (e.g., neonatal alloimmune thrombocytopenia [NAIT], post-transfusion purpura), gene analysis, common variant, HPA-3a/b (I843S)

2025 CPT code 81110

Human Platelet Antigen 6 genotyping (HPA-6w), ITGB3 (integrin, beta 3 [platelet glycoprotein IIIa, antigen CD61] [GPIIIa]) (eg, neonatal alloimmune thrombocytopenia [NAIT], post-transfusion purpura), gene analysis, common variant, HPA-6a/b (R489Q)

2025 CPT code 81106

Human Platelet Antigen 2 (HPA-2) genotyping, GP1BA (glycoprotein Ib [platelet], alpha polypeptide [GPIba]) (e.g., neonatal alloimmune thrombocytopenia [NAIT], post-transfusion purpura), gene analysis, common variant, HPA-2a/b (T145M).

2025 CPT code 81479

Unlisted molecular pathology procedure.

2025 CPT code 81167

BRCA2 (BRCA2, DNA repair associated) (eg, hereditary breast and ovarian cancer) gene analysis; full duplication/deletion analysis (ie, detection of large gene rearrangements).

2025 CPT code 81171

AFF2 (ALF transcription elongation factor 2 [FMR2]) (eg, fragile X intellectual disability 2 [FRAXE]) gene analysis; evaluation to detect abnormal (eg, expanded) alleles

2025 CPT code 81188

CSTB (cystatin B) (eg, Unverricht-Lundborg disease) gene analysis; evaluation to detect abnormal (eg, expanded) alleles

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