238 Neoplasm of uncertain behavior of other and unspecified sites and tissues 
238.0 Neoplasm of uncertain behavior of bone and articular cartilage convert 238.0 to ICD-10-CM 238.1 Neoplasm of uncertain behavior of connective and other soft tissue convert 238.1 to ICD-10-CM 238.2 Neoplasm of uncertain behavior of skin convert 238.2 to ICD-10-CM 238.3 Neoplasm of uncertain behavior of breast convert 238.3 to ICD-10-CM 238.4 Polycythemia vera convert 238.4 to ICD-10-CM 238.5 Neoplasm of uncertain behavior of histiocytic and mast cells convert 238.5 to ICD-10-CM 238.6 Neoplasm of uncertain behavior of plasma cells convert 238.6 to ICD-10-CM 238.7 Other lymphatic and hematopoietic tissues 
238.71 Essential thrombocythemia convert 238.71 to ICD-10-CM 238.72 Low grade myelodysplastic syndrome lesions convert 238.72 to ICD-10-CM 238.73 High grade myelodysplastic syndrome lesions convert 238.73 to ICD-10-CM 238.74 Myelodysplastic syndrome with 5q deletion convert 238.74 to ICD-10-CM 238.75 Myelodysplastic syndrome, unspecified convert 238.75 to ICD-10-CM 238.76 Myelofibrosis with myeloid metaplasia convert 238.76 to ICD-10-CM
238.79 Other lymphatic and hematopoietic tissues convert 238.79 to ICD-10-CM 238.8 Neoplasm of uncertain behavior of other specified sites convert 238.8 to ICD-10-CM 238.9 Neoplasm of uncertain behavior site unspecified convert 238.9 to ICD-10-CM