M31.11

Billable
ChapterM00–M99
Ranksubcategory
Official Description

Hematopoietic stem cell transplantation-associated thrombotic microangiopathy [HSCT-TMA]

Metadata & Insights
  • Billable/specific code (valid for reimbursement).
  • Chapter 13: Diseases of the Musculoskeletal System and Connective Tissue (M00-M99).

Instructional Notes

Includes
  • Transplant-associated thrombotic microangiopathy [TA-TMA]
Code First
  • if applicable:
  • complications of bone marrow transplant (T86.0-)
  • complications of stem cell transplant (T86.5)
Use Additional Code
  • code to identify specific organ dysfunction, such as:
  • acute kidney failure (N17.-)
  • acute respiratory distress syndrome (J80)
  • capillary leak syndrome (I78.8)
  • diffuse alveolar hemorrhage (R04.89)
  • encephalopathy (metabolic) (septic) (G93.41)
  • fluid overload, unspecified (E87.70)
  • graft versus host disease (D89.81-)
  • hemolytic uremic syndrome (D59.3-)
  • hepatic failure (K72.-)
  • hepatic veno-occlusive disease (K76.5)
  • idiopathic interstitial pneumonia (J84.11-)
  • sinusoidal obstruction syndrome (K76.5)
General instructions are available for the parent sections:

Clinical Hierarchy

BillableHas subcodes
CH13Diseases of the musculoskeletal system and connective tissue (M00-M99)
M30-M36Systemic connective tissue disorders (M30-M36)
M31Other necrotizing vasculopathies
M31.1Thrombotic microangiopathy
M31.11Hematopoietic stem cell transplantation-associated thrombotic microangiopathy [HSCT-TMA]Billable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to M31.11:

blockM30-M36
Systemic connective tissue disorders (M30-M36)
View context instructions
chapterCH13
Diseases of the musculoskeletal system and connective tissue (M00-M99)
View context instructions

Code History

  • FY 2021: This code replaced M31.1 (Thrombotic microangiopathy)

MS-DRG Classification

2026 v43.1

This code is grouped within the following Diagnosis Related Group(s) for clinical reimbursement:

Cross Reference

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