Question: Which diagnosis code would I report for “atypical chest pain”? Alabama Subscriber Answer: For “atypical chest pain,” choose R07.89 (Other chest pain). This diagnosis also includes anterior chest-wall pain NOS, according to ICD-10-CM. Important: Different physicians may use the term “atypical chest pain” to mean different things. One physician may mean that the patient’s symptoms are atypical of angina pectoris or cardiac-related pain. On the other hand, another physician may consider “atypical chest pain” to mean that the location, causes, and relieving factors may not be typical of most patients. Coding tip: Reserve R07.82 for intercostal pain, which refers to pain between the ribs.