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Classification according to ICD-10
M23.8 Other internal damage to the knee joint
M24.8 Other specified joint damage, not elsewhere classified
ICD-10 online (WHO version 2019)

Crepitation ( Latin " crepitatio " for "rattle", "crunch") is a medical name for

  1. the painful, audible and palpable rubbing of fracture parts against each other (as a sure sign of fracture ),
  2. is not necessarily painful, but audible and tactile joint crunch (eg. a snap of tendon, ligament or tissue portions over a bony prominence or a rubbing of the joint partners in advanced osteoarthritis ),
  3. the auscultatory crackling or crackling rattle in the initial and final stages of pneumonia ,
  4. the crunching (also called "snowball crunch" hereinafter) sound on touching ( palpation ) of Hautemphysems .


Individual evidence

  1. a b Alphabetical directory for the ICD-10-WHO Version 2019, Volume 3. German Institute for Medical Documentation and Information (DIMDI), Cologne, 2019, p. 484.