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M21.4: Flat foot [pes planus] (acquired)

You have a flat foot.

The sole of the foot normally has a slight upwards arch from front to back. The sole of the foot is arched, particularly on the inside of the foot. The arch is important so that the foot can cushion the body’s weight when walking and standing. Connective tissue and muscles stabilize the arch in the foot.

With a flat foot, this arch is absent. The entire sole of the foot then touches the floor when standing. The sole of the foot may even arch downwards slightly.

A flat foot can develop due to overloading or incorrect loading of the foot. It may also be that connective tissue and muscles in the foot are too weak, so that the arch flattens out. A flat foot can also occur after injuries, inflammations and bone disorders.

Additional indicator

On medical documents, the ICD code is often appended by letters that indicate the diagnostic certainty or the affected side of the body.

  • G: Confirmed diagnosis
  • V: Tentative diagnosis
  • Z: Condition after
  • A: Excluded diagnosis
  • L: Left
  • R: Right
  • B: Both sides

Further information

Note

This information is not intended for self-diagnosis and does not replace professional medical advice from a doctor. If you find an ICD code on a personal medical document, please also note the additional indicator used for diagnostic confidence.
Your doctor will assist you with any health-related questions and explain the ICD diagnosis code to you in a direct consultation if necessary.

Source

Provided by the non-profit organization “Was hab’ ich?” gemeinnützige GmbH on behalf of the Federal Ministry of Health (BMG).