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ICD-10-CM 2027 diagnosis code

L76.34Postprocedural seroma of skin and subcutaneous tissue following other procedure

✓ Billable / specificCC — complication/comorbidity

L76.34 is a valid, billable ICD-10-CM code for postprocedural seroma of skin and subcutaneous tissue following other procedure. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.Short description: Postproc seroma of skin, subcu following other procedure

Code last changed in FY2017 (effective October 1, 2016). Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About L76.34

L76.34 is the ICD-10-CM diagnosis code for postprocedural seroma of skin and subcutaneous tissue following other procedure. It belongs to category L76 (intraoperative and postprocedural complications of skin and subcutaneous tissue), block L76 (intraoperative and postprocedural complications of skin and subcutaneous tissue) and chapter 12 (diseases of the skin and subcutaneous tissue). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.

Within L76.3, choose L76.34 (seroma of skin and subcutaneous tissue following other procedure) only when documentation doesn't support a more specific option: hematoma of skin and subcutaneous tissue following a dermatologic procedure (L76.31), hematoma of skin and subcutaneous tissue following other procedure (L76.32) and seroma of skin and subcutaneous tissue following a dermatologic procedure (L76.33).

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 919 (Complications of Treatment with MCC, relative weight 1.763), DRG 920 (Complications of Treatment with CC, relative weight 0.9975) and DRG 921 (Complications of Treatment without CC/MCC, relative weight 0.6722), in MDC 21 (Injuries, Poisonings and Toxic Effects of Drugs), 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 was added in FY2017, effective October 1, 2016.

Before ICD-10, this condition was coded in ICD-9-CM as 998.13 (seroma complicating a procedure).

Notes that apply from higher levels

Instructions written at a parent level also apply to L76.34.

Broader instructions also apply from Chapter 12: Diseases of the skin and subcutaneous tissue.

Alphabetic index entries

1 entries

Terms in the official ICD-10-CM index that lead to L76.34.

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 →
  • 998.13Seroma complicating a procedureapproximate

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
  • FY2017 (effective 10/1/2016): Added
  • No changes since FY2017.

Common questions about L76.34

Is L76.34 billable?

Yes. L76.34 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can L76.34 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict L76.34 as a principal diagnosis.

Is L76.34 a CC or MCC?

L76.34 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.

What DRG does L76.34 group to?

L76.34 is used in the MS-DRG v44.0 logic for MS-DRG 919 (Complications of Treatment with MCC), MS-DRG 920 (Complications of Treatment with CC) and MS-DRG 921 (Complications of Treatment 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 L76.34?

The CMS General Equivalence Mappings map L76.34 to ICD-9-CM 998.13.