K31.3

Pylorospasm, not elsewhere classified

Billable code

This code does not map to a risk-adjusting HCC in the loaded models.

Coding notes

Excludes 1 never coded together · Excludes 2 may co-exist

This code · K31.3

Excludes 1

congenital or infantile pylorospasm (Q40.0) neurotic pylorospasm (F45.8) psychogenic pylorospasm (F45.8)

Inherited from K31Other diseases of stomach and duodenum

Includes

functional disorders of stomach

Excludes 2

diabetic gastroparesis (E08.43, E09.43, E10.43, E11.43, E13.43) diverticulum of duodenum (K57.00-K57.13)

Inherited from K20-K31Diseases of esophagus, stomach and duodenum

Excludes 2

hiatus hernia (K44.-)

Inherited from chapter 11Diseases of the digestive system

Excludes 2

certain conditions originating in the perinatal period (P04-P96) certain infectious and parasitic diseases (A00-B99) complications of pregnancy, childbirth and the puerperium (O00-O9A) congenital malformations, deformations and chromosomal abnormalities (Q00-Q99) endocrine, nutritional and metabolic diseases (E00-E88) injury, poisoning and certain other consequences of external causes (S00-T88) neoplasms (C00-D49) symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

Official Guidelines for K31.3

FY 2026 ›

I.C.11Chapter-specific guidanceChapter 11: Diseases of the Digestive System (K00-K95)

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