K40.30Unilateral inguinal hernia, with obstruction, without gangrene, not specified as recurrent

K40.30 is the ICD-10-CM diagnosis code for unilateral inguinal hernia, with obstruction, without gangrene, not specified as recurrent. It belongs to category K40 (inguinal hernia), block K40-K46 (hernia) and chapter 11 (diseases of the digestive system). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.

Within K40.3 (unilateral inguinal hernia, with obstruction, without gangrene), K40.30 is specifically for unilateral inguinal hernia, with obstruction, without gangrene, not specified as recurrent. Related codes cover recurrent (K40.31).

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), DRG 395 (Other Digestive System Diagnoses without CC/MCC, relative weight 0.6382), DRG 791 (Prematurity with Major Problems, relative weight 4.1075) and DRG 793 (Full Term Neonate with Major Problems, relative weight 4.2195), in MDC 06 (Diseases and Disorders of the Digestive System) and MDC 15 (Newborns and Other Neonates with Conditions Originating in the Perinatal Period), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Before ICD-10, this condition was coded in ICD-9-CM as 550.10 (inguinal hernia, with obstruction, without mention of gangrene, unilateral or unspecified (not specified as recurrent)).