Skip to content
Dx

ICD-10-CM 2027 diagnosis code

K41.90Unilateral femoral hernia, without obstruction or gangrene, not specified as recurrent

✓ Billable / specific

K41.90 is a valid, billable ICD-10-CM code for unilateral femoral hernia, without obstruction or gangrene, not specified as recurrent. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.Short description: Unil femoral hernia, w/o obst or gangrene, not spcf as recur

Looking up by condition? See ICD-10 code for Femoral hernia.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About K41.90

K41.90 is the ICD-10-CM diagnosis code for unilateral femoral hernia, without obstruction or gangrene, not specified as recurrent. It belongs to category K41 (femoral 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 K41.9 (unilateral femoral hernia, without obstruction or gangrene), K41.90 is specifically for unilateral femoral hernia, without obstruction or gangrene, not specified as recurrent. Related codes cover recurrent (K41.91).

It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.

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.

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 553.00 (femoral hernia without mention of obstruction of gangrene, unilateral or unspecified(not specified as recurrent)).

Coding notes

Applicable toConditions and synonyms classified to this code
  • Femoral hernia NOS
  • Unilateral femoral hernia NOS

Notes that apply from higher levels

Instructions written at a parent level also apply to K41.90.

Broader instructions also apply from K40-K46 Hernia and Chapter 11: Diseases of the digestive system.

Alphabetic index entries

4 entries

Terms in the official ICD-10-CM index that lead to K41.90.

MS-DRG v44.0 grouping

All DRGs →

Inpatient MS-DRGs this diagnosis can group to, as the principal or a secondary diagnosis, depending on the rest of the claim.

ICD-9-CM equivalent

Converter →
  • 553.00Femoral hernia without mention of obstruction of gangrene, unilateral or unspecified(not specified as recurrent)exact

From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about K41.90

Is K41.90 billable?

Yes. K41.90 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can K41.90 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict K41.90 as a principal diagnosis.

Is K41.90 a CC or MCC?

No. K41.90 is neither a CC nor an MCC under MS-DRG v44.0.

What DRG does K41.90 group to?

K41.90 is used in the MS-DRG v44.0 logic for MS-DRG 393 (Other Digestive System Diagnoses with MCC), MS-DRG 394 (Other Digestive System Diagnoses with CC) and MS-DRG 395 (Other Digestive System Diagnoses without CC/MCC). Which one applies depends on whether it is the principal diagnosis and on the rest of the claim.

What is the ICD-9 code for K41.90?

The CMS General Equivalence Mappings map K41.90 to ICD-9-CM 553.00.