ICD-10 code for intestine small impervious

The ICD-10-CM code for intestine small impervious is Q41.9 (Congenital absence, atresia and stenosis of small intestine, part unspecified). The official index lists 2 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on Q41.9.

Within Q41, choose Q41.9 (part unspecified) only when documentation doesn't support a more specific option: duodenum (Q41.0), jejunum (Q41.1), ileum (Q41.2) and other specified parts of small intestine (Q41.8).

As a secondary diagnosis it is a CC (complication or comorbidity), which can move an inpatient stay into the "with CC" MS-DRG of its family, unless the principal diagnosis excludes it.

In MS-DRG v44.0, it is part of the grouping logic for DRG 393 (Other Digestive System Diagnoses with MCC, relative weight 1.5881), DRG 394 (Other Digestive System Diagnoses with CC, relative weight 0.9228) and DRG 395 (Other Digestive System Diagnoses without CC/MCC, relative weight 0.6382), in MDC 06 (Diseases and Disorders of the Digestive System), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.