M31.11
Billable codeHematopoietic stem cell transplantation-associated thrombotic microangiopathy [HSCT-TMA]
The ICD-10 code for hematopoietic stem cell transplantation-associated thrombotic microangiopathy [hsct-tma] is M31.11.
Clinical notes
Code first
This code represents a manifestation of an underlying disease. Coding convention requires the underlying (etiology) code to be sequenced first, with this code listed second.
Also known as
Alternate wording, synonyms, or specific conditions that fall under this code, listed to help confirm you've picked the right one.
- Transplant-associated thrombotic microangiopathy [TA-TMA]
Use additional code
This code represents an underlying condition. When a related manifestation is also present, coding convention calls for an additional code to be listed after this one.
- 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)
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •This code represents a manifestation. Documentation should identify the underlying condition, which must be coded first.
- •If the associated manifestation or related condition noted above is also documented, an additional code should be reported alongside this one.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- M31.10Thrombotic microangiopathy, unspecified
- M31.19Other thrombotic microangiopathy
- M31.11Hematopoietic stem cell transplantation-associated thrombotic microangiopathy [HSCT-TMA]
Associated MS-DRGs
M31.11 can serve as the principal diagnosis for these Medicare Severity Diagnosis-Related Groups.
Informational only — actual DRG assignment also depends on procedures, complications/comorbidities (CC/MCC), discharge status, and payer-specific rules not reflected here.