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R11.13

R11.13Vomiting of fecal matter

Billable / specific codeICD-10-CM

R11.13 is a billable, specific ICD-10-CM code for vomiting of fecal matter. It is valid for submission on a claim.

Excludes1 inherited from the categories above R11.13

These are not written on R11.13, but they bind it: a note on a category applies to every code beneath it. Billing R11.13 with anything listed here is a denial.

Written on R11 Nausea and vomiting

  • cyclical vomiting associated with migraine (G43.A-)
  • excessive vomiting in pregnancy (O21.-)
  • hematemesis (K92.0)
  • neonatal hematemesis (P54.0)
  • newborn vomiting (P92.0-)
  • psychogenic vomiting (F50.89)
  • vomiting associated with bulimia nervosa (F50.2-)
  • vomiting following gastrointestinal surgery (K91.0)

Other codes that can never be billed with R11.13

These codes carry an Excludes1 note pointing at R11.13. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading R11.13 alone.

Risk adjustment

R11.13 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Medicare coverage

R11.13 is named in 7 Medicare coverage policies 7 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

  • A56394Billing and Coding: Colonoscopy and Sigmoidoscopy-Diagnostic
  • A56421Billing and Coding: CT of the Abdomen and Pelvis
  • A56456Billing and Coding: Colonoscopy/Sigmoidoscopy/Proctosigmoidoscopy
  • A56632Billing and Coding: Colonoscopy/Sigmoidoscopy/Proctosigmoidoscopy

How R11.13 is indexed

Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to R11.13.

  • Vomitingfecal matter

Code history

R11.13 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.

Related codes at this level

Codes that share R11.1. If R11.13 is not quite right, the correct code is usually one of these.

Questions about R11.13

Is R11.13 a billable ICD-10-CM code?
Yes. R11.13 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does R11.13 sit in the tabular list?
Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99), in the block Symptoms and signs involving the digestive system and abdomen (R10-R19).
What cannot be coded together with R11.13?
R11.13 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above R11.13 (R11) and apply to it just the same.
ICD-10-CMFY2026-Apr· effective April 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release — see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.