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ICD-10-CM 2027 diagnosis code

T87.33Neuroma of amputation stump, right lower extremity

✓ Billable / specific

T87.33 is a valid, billable ICD-10-CM code for neuroma of amputation stump, right lower extremity. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.

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 T87.33

T87.33 is the ICD-10-CM diagnosis code for neuroma of amputation stump, right lower extremity. It belongs to category T87 (complications peculiar to reattachment and amputation), block T80-T88 (complications of surgical and medical care, not elsewhere classified) and chapter 19 (injury, poisoning and certain other consequences of external causes). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.

Within T87.3 (neuroma of amputation stump), T87.33 is specifically for neuroma of amputation stump, right lower extremity. Related codes cover unspecified extremity (T87.30), right upper extremity (T87.31), left upper extremity (T87.32) and left lower extremity (T87.34).

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 564 (Other Musculoskeletal System and Connective Tissue Diagnoses with MCC, relative weight 1.4908), DRG 565 (Other Musculoskeletal System and Connective Tissue Diagnoses with CC, relative weight 0.9783) and DRG 566 (Other Musculoskeletal System and Connective Tissue Diagnoses without CC/MCC, relative weight 0.7378), in MDC 08 (Diseases and Disorders of the Musculoskeletal System and Connective Tissue), 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 997.61 (neuroma of amputation stump).

Notes that apply from higher levels

Instructions written at a parent level also apply to T87.33.

Broader instructions also apply from T80-T88 Complications of surgical and medical care, not elsewhere classified and Chapter 19: Injury, poisoning and certain other consequences of external causes.

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 →
  • 997.61Neuroma of amputation stumpapproximate

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 T87.33

Is T87.33 billable?

Yes. T87.33 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can T87.33 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict T87.33 as a principal diagnosis.

Is T87.33 a CC or MCC?

No. T87.33 is neither a CC nor an MCC under MS-DRG v44.0.

What DRG does T87.33 group to?

T87.33 is used in the MS-DRG v44.0 logic for MS-DRG 564 (Other Musculoskeletal System and Connective Tissue Diagnoses with MCC), MS-DRG 565 (Other Musculoskeletal System and Connective Tissue Diagnoses with CC) and MS-DRG 566 (Other Musculoskeletal System and Connective Tissue 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 T87.33?

The CMS General Equivalence Mappings map T87.33 to ICD-9-CM 997.61.