MP/H Rules/Histology- -Melanoma: What is the correct histology code if the final diagnosis for an excisional biopsy specimen is reported as "malignant melanoma, superficial spreading type" but the under the "cell type" section in the CAP protocol layout of the pathology report it lists "cell type: epithelioid"? See Discussion.
MP/H Rules/Histology--Testis: What is the histology code for a testis primary with embryonal carcinoma (70%), yolk sac tumor (30%), and a focus of seminoma (<1%)? See Discussion.
MP/H Rules/Histology--Kidney: How is the histology coded and what rule(s) apply to the classification of succinate dehydrogenase-deficient renal cell carcinoma? See Discussion.
Solid Tumor Rules (2018)/Histology--Lung: If the pathology states non-small cell carcinoma of the lung (NSCLC), consistent with squamous cell carcinoma, is the code non-small cell carcinoma according to the Solid Tumor Rules? The Medical Oncologist states that the tumor is a squamous cell carcinoma. In these instances would you code the squamous cell carcinoma since you have a definite physician statement?
First Course Treatment/Chemotherapy--Colon: Is maintenance therapy coded as part of the first course of treatment or as part of subsequent course of treatment?
MP/H Rules/Histology--Thyroid: How should histology be coded for a single tumor with final diagnosis undifferentiated (anaplastic) carcinoma arising in association with papillary thyroid carcinoma and the Summary Cancer Data states Histologic type: Undifferentiated (anaplastic) carcinoma only? See Discussion.
Solid Tumor Rules (2018)/Histology--Bladder: Which Solid Tumor H Rule applies when the patient has a single tumor removed by transurethral resection of bladder tumor and the final diagnosis is: Carcinoma of the bladder with the following features: Histologic type: Urothelial carcinoma? See Discussion.