ICD-10-CM 2027
ICD-10 code for bowel habit change
From the official ICD-10-CM alphabetic index entry “Change (s) (in) (of) › bowel habit”. Page updated September 29, 2026.
About coding bowel habit change
The ICD-10-CM code for bowel habit change is R19.4 (Change in bowel habit).
Within R19 (other symptoms and signs involving the digestive system and abdomen), R19.4 is specifically for change in bowel habit. Related codes cover intra-abdominal and pelvic swelling, mass and lump (R19.0), abnormal bowel sounds (R19.1), visible peristalsis (R19.2), abdominal rigidity (R19.3), other fecal abnormalities (R19.5), Halitosis (R19.6), diarrhea, unspecified (R19.7) and other specified symptoms and signs involving the digestive system and abdomen (R19.8).
Don't report R19.4 together with the conditions in its Excludes1 note: constipation (K59.0-) and functional diarrhea (K59.1).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
Don't confuse with (Excludes1 for R19.4)
Common questions about bowel habit change ICD-10 codes
What is the ICD-10 code for bowel habit change?
- R19.4 — Change in bowel habit.
Is R19.4 billable?
- Yes. R19.4 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can R19.4 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict R19.4 as a principal diagnosis.
Is R19.4 a CC or MCC?
- No. R19.4 is neither a CC nor an MCC under MS-DRG v44.0.