K31.8

Other specified diseases of stomach and duodenum

Non-billable header

K31.8 is a non-billable header code. Use one of the more specific codes below.

Inclusion terms

Includes (from K31)

  • functional disorders of stomach

Excludes2

Not included here — may be reported together when both conditions exist.

  • certain conditions originating in the perinatal period (P04-P96) (from K31)
  • certain infectious and parasitic diseases (A00-B99) (from K31)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A) (from K31)
  • congenital malformations, deformations and chromosomal abnormalities (Q00-Q99) (from K31)
  • endocrine, nutritional and metabolic diseases (E00-E88) (from K31)
  • injury, poisoning and certain other consequences of external causes (S00-T88) (from K31)
  • neoplasms (C00-D49) (from K31)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94) (from K31)
  • hiatus hernia (K44.-) (from K31)
  • diabetic gastroparesis (E08.43, E09.43, E10.43, E11.43, E13.43) (from K31)
  • diverticulum of duodenum (K57.00-K57.13) (from K31)

Parent code

  • K31Other diseases of stomach and duodenumHeader

More specific codes K31.8

  • K31.81Angiodysplasia of stomach and duodenumHeader
  • K31.82Dieulafoy lesion (hemorrhagic) of stomach and duodenumBillable
  • K31.83AchlorhydriaBillable
  • K31.84GastroparesisBillable
  • K31.89Other diseases of stomach and duodenumBillable

Related codes

  • K31.0Acute dilatation of stomachBillable
  • K31.1Adult hypertrophic pyloric stenosisBillable
  • K31.BHypertrophic pyloric stenosis, in childhoodBillable
  • K31.2Hourglass stricture and stenosis of stomachBillable
  • K31.3Pylorospasm, not elsewhere classifiedBillable
  • K31.4Gastric diverticulumBillable
  • K31.5Obstruction of duodenumBillable
  • K31.6Fistula of stomach and duodenumBillable
  • K31.7Polyp of stomach and duodenumBillable
  • K31.9Disease of stomach and duodenum, unspecifiedBillable
  • K31.AGastric intestinal metaplasiaHeader

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