2026 ICD-10-CM Diagnosis Code Q43.3Congenital malformations of intestinal fixation

ICD-10-CM Codes›Q00-Q99›Q38-Q45›Q43

ICD-10-CM Q43.3
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

Q43.3 is a billable ICD-10-CM diagnosis code for congenital malformations of intestinal fixation. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 393 through 395. The code is exempt from POA reporting. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Digestive congenital anomalies.

Code Identity

ICD-10-CM Code
Q43.3
Billable Status
Yes — Valid for Submission
Code Describes
Congenital malformations of intestinal fixation
Short Description
Congenital malformations of intestinal fixation
Same as the full description in the CMS dataset.
Parent Code
Q43
Other congenital malformations of intestine

Code Classification

ChapterQ00-Q99Congenital malformations, deformations and chromosomal abnormalities
SectionQ38-Q45Other congenital malformations of the digestive system
CategoryQ43Other congenital malformations of intestine
This CodeQ43.3Congenital malformations of intestinal fixation

Present on Admission (POA)Billing

Q43.3 is exempt from POA reporting on inpatient claims to general acute care hospitals. Review other POA exempt codes.

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Adhesion of omentum
  • Cleft lip and cleft palate with intestinal malrotation and cardiopathy syndrome
  • Congenital adhesions of omentum
  • Congenital adhesions of peritoneum
  • Congenital anomaly of fixation of intestine
  • Congenital duodenal obstruction
  • Congenital duodenal obstruction due to malrotation of intestine
  • Congenital intestinal adhesions
  • Congenital malrotation of intestine
  • Congenital malrotation of large intestine
  • Congenital obstruction of small intestine
  • Congenital volvulus
  • Failure of rotation of cecum
  • Failure of rotation of colon
  • Familial intestinal malrotation
  • Intestinal volvulus
  • Jackson's membrane
  • Malrotation of cecum
  • Malrotation of colon
  • Malrotation of colon and cecum
  • Malrotation of intestine with internal herniation
  • Malrotation of intestine with midgut volvulus
  • Malrotation of small intestine
  • Malrotation of the intestine type IA
  • Malrotation of the intestine type IIB
  • Malrotation of the intestine type IIC
  • Malrotation of the intestine type IIIA
  • Malrotation of the intestine type IIIB
  • Malrotation of the intestine type IIID
  • Mobile cecum
  • Subphrenic interposition syndrome
  • Universal mesentery
  • Vitellointestinal band

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Inclusion Terms

  • Congenital omental, anomalous adhesions bands
  • Congenital peritoneal adhesions bands
  • Incomplete rotation of cecum and colon
  • Insufficient rotation of cecum and colon
  • Jackson's membrane
  • Malrotation of colon
  • Rotation failure of cecum and colon
  • Universal mesentery

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Adhesions, adhesive(postinfective)
      • congenital
        • omental, anomalous
    • Adhesions, adhesive(postinfective)
      • congenital
        • peritoneal
    • Adhesions, adhesive(postinfective)
      • peritoneum, peritoneal (postinfective)
        • congenital
    • Anomaly, anomalous(congenital) (unspecified type)
      • fixation, intestine
    • Anomaly, anomalous(congenital) (unspecified type)
      • intestine (large) (small)
        • with anomalous adhesions, fixation or malrotation
    • Band(s)
      • anomalous or congenital
        • intestine
    • Band(s)
      • anomalous or congenital
        • omentum
    • Band(s)
      • periappendiceal, congenital
    • Chilaiditi's syndrome(subphrenic displacement, colon)
    • Displacement, displaced
      • colon (congenital)
    • Failure, failed
      • rotation
        • cecum
    • Failure, failed
      • rotation
        • colon
    • Failure, failed
      • rotation
        • intestine
    • Imperfect
      • rotation, intestine
    • Incomplete
      • rotation, intestine
    • Jackson's
      • membrane
    • Jackson's
      • veil
    • Lane's
      • band
    • Malposition
      • congenital
        • intestine (large) (small)
          • with anomalous adhesions, fixation or malrotation
    • Malrotation
      • cecum
    • Malrotation
      • colon
    • Malrotation
      • intestine
    • Membrane(s), membranous
      • Jackson's
    • Mobile, mobility
      • cecum
    • Nondescent(congenital)
      • cecum
    • Nondescent(congenital)
      • colon
    • Rotation
      • anomalous, incomplete or insufficient, intestine
    • Rotation
      • cecum (congenital)
    • Rotation
      • colon (congenital)
    • Syndrome
      • Chilaiditi's
    • Syndrome
      • subphrenic interposition
    • Undescended
      • cecum
    • Undescended
      • colon
    • Universal mesentery
    • Veil
      • Jackson's

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR MAL002
Digestive congenital anomalies
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Intestinal Volvulus

    a twisting in the intestine (intestines) that can cause intestinal obstruction.

  • Intestinal Volvulus

    twisting of a loop of bowel that results in intestinal obstruction.

Patient EducationClinical

Birth Defects

A birth defect is a problem that happens while a baby is developing in the mother's body. Most birth defects happen during the first 3 months of pregnancy. One out of every 33 babies in the United States is born with a birth defect.

The full article covers:

  • What are birth defects?
  • What causes birth defects?
  • Who is at risk of having a baby with birth defects?
  • How are birth defects diagnosed?
  • What are the treatments for birth defects?
  • Can birth defects be prevented?

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert Q43.3 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
751.4 Intestinal fixation anom
Exact Match The mapping is direct, with no qualifiers.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About Q43.3Overview

Is Q43.3 (Other congenital malformations of intestine) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report congenital malformations of intestinal fixation on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does Q43.3 group to?

When congenital malformations of intestinal fixation is the principal diagnosis on an inpatient stay, it groups to MS-DRG 393, 394, 395, with relative weights from 0.6490 to 1.5993 depending on complications. Higher weights mean higher Medicare reimbursement.

Is Q43.3 exempt from POA reporting?

Yes. CMS lists this code among those exempt from present on admission reporting, so hospitals do not assign a POA indicator for congenital malformations of intestinal fixation on inpatient claims.

What is the ICD-9 equivalent of Q43.3?

Under the General Equivalence Mappings, congenital malformations of intestinal fixation converts to ICD-9-CM 751.4 (intestinal fixation anom). The mapping is a direct match.

Footnotes

[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:

  • The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
  • The condition places limitations on self-care, independent living, and social interactions.