M31.11 — Hematopoietic stem cell transplantation-associated thrombotic microangiopathy [HSCT-TMA]
M31.11 is a billable, specific ICD-10-CM code for hematopoietic stem cell transplantation-associated thrombotic microangiopathy [hsct-tma]. It is valid for submission on a claim.
Code first
The underlying condition must be sequenced before this code.
Use additional code
Add a secondary code to capture the detail described below.
- 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)
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Transplant-associated thrombotic microangiopathy [TA-TMA]
Risk adjustment
M31.11 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:
- HCC 454 Stem Cell, Including Bone Marrow, Transplant Status/Complications1.068 RAF
Coefficient shown for the Community Non-dual Aged segment. A higher HCC in the same hierarchy will suppress this one, so capturing it does not always add score.
Medicare coverage
M31.11 is named in 20 Medicare coverage policies — 14 listing it as supporting medical necessity, and 6 listing it as NOT covered. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A58865Billing and Coding: Amniotic and Placental-Derived Product Injections and/or Applications for Musculoskeletal Indications, Non-Woundnot covered
- A58893Billing and Coding: Amniotic and Placental-Derived Product Injections and/or Applications for Musculoskeletal Indications, Non-Woundnot covered
- A59374Billing and Coding: Amniotic and Placental-Derived Product Injections and/or Applications for Musculoskeletal Indications, Non-Woundnot covered
- A59434Billing and Coding: Amniotic and Placental-Derived Product Injections and/or Applications for Musculoskeletal Indications, Non-Woundnot covered
How M31.11 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to M31.11.
- HSCT-TMA(hematopoietic stem cell transplantation-associated thrombotic microangiopathy)
- Microangiopathy›thrombotic›hematopoietic stem cell transplantation-associated [HSCT-TMA]
Related codes at this level
Codes that share M31.1. If M31.11 is not quite right, the correct code is usually one of these.
Questions about M31.11
- Is M31.11 a billable ICD-10-CM code?
- Yes. M31.11 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does M31.11 sit in the tabular list?
- Diseases of the musculoskeletal system and connective tissue (M00-M99), in the block Systemic connective tissue disorders (M30-M36).