2019 ICD-10-CM Diagnosis Code K31.5

Obstruction of duodenum

    2016 2017 2018 2019 Billable/Specific Code
  • K31.5 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2019 edition of ICD-10-CM K31.5 became effective on October 1, 2018.
  • This is the American ICD-10-CM version of K31.5 - other international versions of ICD-10 K31.5 may differ.
Applicable To
  • Constriction of duodenum
  • Duodenal ileus (chronic)
  • Stenosis of duodenum
  • Stricture of duodenum
  • Volvulus of duodenum
Type 1 Excludes
Type 1 Excludes Help
A type 1 excludes note is a pure excludes. It means "not coded here". A type 1 excludes note indicates that the code excluded should never be used at the same time as K31.5. A type 1 excludes note is for used for when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
  • congenital stenosis of duodenum (
    ICD-10-CM Diagnosis Code Q41.0

    Congenital absence, atresia and stenosis of duodenum

      2016 2017 2018 2019 Billable/Specific Code POA Exempt
    Q41.0
    )
The following code(s) above K31.5 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to K31.5:
  • K00-K95
    2019 ICD-10-CM Range K00-K95

    Diseases of the digestive system

    Type 2 Excludes
    • 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)
    Diseases of the digestive system
  • K20-K31
    2019 ICD-10-CM Range K20-K31

    Diseases of esophagus, stomach and duodenum

    Type 2 Excludes
    Diseases of esophagus, stomach and duodenum
  • K31
    ICD-10-CM Diagnosis Code K31

    Other diseases of stomach and duodenum

      2016 2017 2018 2019 Non-Billable/Non-Specific Code
    Includes
    • functional disorders of stomach
    Type 2 Excludes
    Other diseases of stomach and duodenum
Approximate Synonyms
  • Chronic duodenal ileus
  • Duodenal anastomotic stricture
  • Duodenal disorder, anastomotic stricture
  • Duodenal disorder, chronic ileus
  • Duodenal disorder, cicatrix
  • Duodenal disorder, obstruction
  • Duodenal disorder, stricture
  • Duodenal scar
  • Stricture of duodenum
Clinical Information
  • A disorder characterized by a narrowing of the lumen of the duodenum.
  • A disorder characterized by blockage of the normal flow of stomach contents through the duodenum.
  • Blockage of the normal flow of stomach contents through the duodenum.
  • Hindrance of the passage of luminal contents in the duodenum. Duodenal obstruction can be partial or complete, and caused by intrinsic or extrinsic factors. Simple obstruction is associated with diminished or stopped flow of luminal contents. Strangulating obstruction is associated with impaired blood flow to the duodenum in addition to obstructed flow of luminal contents.
  • Narrowing of the lumen of the duodenum.
ICD-10-CM K31.5 is grouped within Diagnostic Related Group(s) (MS-DRG v36.0):
  • 380 Complicated peptic ulcer with mcc
  • 381 Complicated peptic ulcer with cc
  • 382 Complicated peptic ulcer without cc/mcc
  • 383 Uncomplicated peptic ulcer with mcc
  • 384 Uncomplicated peptic ulcer without mcc

Convert K31.5 to ICD-9-CM

Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
Code annotations containing back-references to K31.5:
  • Type 1 Excludes: K56
    ICD-10-CM Diagnosis Code K56

    Paralytic ileus and intestinal obstruction without hernia

      2016 2017 2018 2019 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • congenital stricture or stenosis of intestine (Q41-Q42)
    • cystic fibrosis with meconium ileus (E84.11)
    • ischemic stricture of intestine (K55.1)
    • meconium ileus NOS (P76.0)
    • neonatal intestinal obstructions classifiable to P76.-
    • obstruction of duodenum (K31.5)
    • postprocedural intestinal obstruction (K91.3-)
    • stenosis of anus or rectum (K62.4)
  • Type 2 Excludes: K56.2
    ICD-10-CM Diagnosis Code K56.2

    Volvulus

      2016 2017 2018 2019 Billable/Specific Code
    Applicable To
    • Strangulation of colon or intestine
    • Torsion of colon or intestine
    • Twist of colon or intestine
    Type 2 Excludes
    • volvulus of duodenum (K31.5)

Diagnosis Index entries containing back-references to K31.5:
  • Cicatrix (adherent) (contracted) (painful) (vicious) L90.5
    - see also Scar
    ICD-10-CM Diagnosis Code L90.5

    Scar conditions and fibrosis of skin

      2016 2017 2018 2019 Billable/Specific Code
    Applicable To
    • Adherent scar (skin)
    • Cicatrix
    • Disfigurement of skin due to scar
    • Fibrosis of skin NOS
    • Scar NOS
    Type 2 Excludes
    • duodenum K31.5 (bulb)
  • Constriction - see also Stricture
    • duodenum K31.5
  • Ileus (bowel) (colon) (inhibitory) (intestine) K56.7
    ICD-10-CM Diagnosis Code K56.7

    Ileus, unspecified

      2016 2017 2018 2019 Billable/Specific Code
    Type 1 Excludes
    Type 2 Excludes
    • intestinal obstruction with hernia (K40-K46)
    • duodenal K31.5 (chronic)
  • Obstruction, obstructed, obstructive
    • duodenum K31.5
  • Scar, scarring L90.5
    - see also Cicatrix
    ICD-10-CM Diagnosis Code L90.5

    Scar conditions and fibrosis of skin

      2016 2017 2018 2019 Billable/Specific Code
    Applicable To
    • Adherent scar (skin)
    • Cicatrix
    • Disfigurement of skin due to scar
    • Fibrosis of skin NOS
    • Scar NOS
    Type 2 Excludes
    • duodenum, obstructive K31.5
  • Stasis
    • duodenal K31.5
  • Stenosis, stenotic (cicatricial) - see also Stricture
  • Stricture - see also Stenosis
  • Syndrome - see also Disease
    • aortomesenteric duodenum occlusion K31.5
  • Volvulus (bowel) (colon) (intestine) K56.2
    ICD-10-CM Diagnosis Code K56.2

    Volvulus

      2016 2017 2018 2019 Billable/Specific Code
    Applicable To
    • Strangulation of colon or intestine
    • Torsion of colon or intestine
    • Twist of colon or intestine
    Type 2 Excludes
    • volvulus of duodenum (K31.5)
    • duodenum K31.5

ICD-10-CM Codes Adjacent To K31.5
K29.9 Gastroduodenitis, unspecified
K29.90 …… without bleeding
K29.91 …… with bleeding
K30 Functional dyspepsia
K31 Other diseases of stomach and duodenum
K31.0 Acute dilatation of stomach
K31.1 Adult hypertrophic pyloric stenosis
K31.2 Hourglass stricture and stenosis of stomach
K31.3 Pylorospasm, not elsewhere classified
K31.4 Gastric diverticulum
K31.5 Obstruction of duodenum
K31.6 Fistula of stomach and duodenum
K31.7 Polyp of stomach and duodenum
K31.8 Other specified diseases of stomach and duodenum
K31.81 Angiodysplasia of stomach and duodenum
K31.811 …… with bleeding
K31.819 …… without bleeding
K31.82 Dieulafoy lesion (hemorrhagic) of stomach and duodenum
K31.83 Achlorhydria
K31.84 Gastroparesis
K31.89 Other diseases of stomach and duodenum

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.