Flank pain, unspecified side

This code describes pain localized to the flank region when the specific side (left or right) is not documented. Flank pain is typically experienced in the area between the lower ribs and the top of the hip, often indicative of conditions affecting the kidneys, ureters, or surrounding musculoskeletal structures.

Use this code when the medical record clearly states "flank pain" but does not specify whether it is on the left or right side. This is appropriate for initial encounters where laterality is yet to be determined or when the provider explicitly documents "unspecified flank pain."

• Avoid using this code if the laterality (left or right) is documented; instead, use the more specific R10.A1 or R10.A2.
• Query the provider for clarification on laterality if possible to ensure the most specific code is assigned.
• This code is often a symptom code; consider sequencing it after the definitive diagnosis if known and documented.