Question: What are the ICD-10 choices for reporting heel spurs? Oregon Subscriber Answer: The following codes are your ICD-10 options for heel spurs: Heel spurs, also called calcaneal spurs, may be caused by the tears in the origin of the plantar fascia at the calcaneus. The plantar fascia is a layer of fibrous connective tissue that originates in the heel bone and fans out to insert in the metatarsals. Due to excessive use or microtrauma, the plantar fascia may tear at its origin on the heel bone. If adequate healing does not occur, calcium deposits may collect to form an exostosis or protrusion, which constitutes the heel spur.