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R11.12 ICD-10-CM Code: Projectile vomiting

ICD-10-CM Code View

HCC Buddy Code Card

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FY 2026 Apr update / Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99) / Symptoms and signs involving the digestive system and abdomen (R10-R19)

R11.12

Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidance

Projectile vomiting

Forceful or sudden expulsion of stomach contents with significant velocity, often occurring without warning.

CMS-HCC V28

N/A

Not mapped

CMS-HCC V24

N/A

Not mapped

ACA/HHS

N/A

Not mapped

ESRD/PACE

N/A

Not mapped

RXHCC

N/A

Not mapped

Code Book Path

Official
R11Nausea and vomiting
R11.1Vomiting
R11.12Projectile vomiting

Inclusion Terms

Official

ICD-10-CM does not list inclusion terms for R11.12 in this effective period.

Excludes 2

Official

ICD-10-CM does not list Excludes 2 notes for R11.12 in this effective period.

Related Child Codes

Official
R11.10Vomiting, unspecified
R11.11Vomiting without nausea
R11.13Vomiting of fecal matter
R11.14Bilious vomiting
R11.15Cyclical vomiting syndrome unrelated to migraine

Includes

Official

ICD-10-CM does not list Includes notes for R11.12 in this effective period.

Excludes 1

Official

ICD-10-CM does not list Excludes 1 notes for R11.12 in this effective period.

Code First

Official

ICD-10-CM does not list Code First sequencing instructions for R11.12 in this effective period.

Use Additional

Official

ICD-10-CM does not list Use Additional Code instructions for R11.12 in this effective period.

Code Also

Official

ICD-10-CM does not list Code Also instructions for R11.12 in this effective period.

Buddy Documentation Tip

HCC Buddy guidance
Projectile vomiting in infants may suggest pyloric stenosis; in adults it may indicate increased intracranial pressure or neurological issues
Document the force and characteristics of vomiting to support this specific code selection

Last updated: FY2026 ICD-10-CM Apr update, Apr 1, 2026 through Sep 30, 2026. CMS-HCC V28 is 100% phased in for payment year 2026.

Is R11.12 an HCC code?

No. R11.12 is a billable ICD-10-CM code but does not map to any HCC category in V28, V24, ESRD, or RxHCC.

Code
R11.12
Description
Projectile vomiting
HCC (V28)
No CMS-HCC V28 mapping
RAF
Billable
Yes
Payment year
2026

Coder workflow notes

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This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).

What This Code Means

R11.12 is the ICD-10-CM diagnosis code for projectile vomiting. Forceful or sudden expulsion of stomach contents with significant velocity, often occurring without warning. R11.12 sits in the ICD-10-CM chapter for symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (r00-r99), within the section covering symptoms and signs involving the digestive system and abdomen (r10-r19).

R11.12 is a billable ICD-10-CM code but does not map to a payment HCC under the CMS-HCC V28, V24, ESRD, or RxHCC risk adjustment models. It can be reported on Medicare Advantage encounter data submissions but it does not contribute to a beneficiary's RAF score and therefore does not affect risk-adjusted payments to the plan.

Projectile vomiting in infants may suggest pyloric stenosis; in adults it may indicate increased intracranial pressure or neurological issues.

HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for R11.12 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.

Coding Tips

  • Projectile vomiting in infants may suggest pyloric stenosis; in adults it may indicate increased intracranial pressure or neurological issues
  • Document the force and characteristics of vomiting to support this specific code selection

Child Codes

Code Hierarchy

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