ICD-10 Code
International Classification of Diseases, 10th Revision
Oct 23, 2017

See: Other functional intestinal disorders

K59 is NOT a complete or valid ICD 10 diagnosis code.

You should code each health care encounter to the level of certainty known for that encounter. When sufficient clinical information is not known or available to assign a more specific code, it is acceptable to report the appropriate unspecified code.

See below for more specifc codes relating to
Other functional intestinal disorders
  • change in bowel habit NOS (R19.4)
  • intestinal malabsorption (K90.-)
  • psychogenic intestinal disorders (F45.8)
  • functional disorders of stomach (K31.-)

More specific codes for Other functional intestinal disorders

  • K59.0 - Constipation
    • K59.00 - Constipation, unspecified
    • K59.01 - Slow transit constipation
    • K59.02 - Outlet dysfunction constipation
    • K59.03 - Drug induced constipation
    • K59.04 - Chronic idiopathic constipation
    • K59.09 - Other constipation
  • K59.1 - Functional diarrhea
  • K59.2 - Neurogenic bowel, not elsewhere classified
  • K59.3 - Megacolon, not elsewhere classified
  • K59.4 - Anal spasm
  • K59.8 - Other specified functional intestinal disorders
  • K59.9 - Functional intestinal disorder, unspecified
See also ICD 10 code for
Back to K59
See the 2017 ICD-10-CM Coding Guidelines.

Questions related to K59 Other functional intestinal disorders

When ICD 10 was implemented on October 1, 2015, it did not affect physicians', outpatient facilities', and hospital outpatient departments' use of CPT codes on Medicare Fee-For-Service claims. Providers should continue to use CPT codes to report these services.