Question: One of the residents in my building was diagnosed with a stress fracture in one ankle. Are there specific ICD-10 codes for stress fractures? Which PDPM clinical category would this fall into? New Mexico Subscriber Answer: Stress fractures do have their own ICD-10 code set: M84.3- (Stress fracture). For this resident, report one of the following codes, depending on the specifics, and utilizing a physician query, if necessary: According to ICD-10, providers might refer to stress fractures by several other terms, including: A resident who has a stress fracture in an ankle would fall into the nonsurgical orthopedic/musculoskeletal clinical category according to the Patient-Driven Payment Model (PDPM).