M31.1

Thrombotic microangiopathy

Non-billable header

M31.1 is a non-billable header code. Use one of the more specific codes below.

Inclusion terms

autoimmune disease NOS
collagen (vascular) disease NOS
systemic autoimmune disease
systemic collagen (vascular) disease
Note: Use an external cause code following the code for the musculoskeletal condition, if applicable, to identify the cause of the musculoskeletal condition

Not coded here — never report together with this code.

autoimmune disease, single organ or single cell-type -code to relevant condition category (from M31)

Not included here — may be reported together when both conditions exist.

arthropathic psoriasis (L40.5-) (from M31)
certain conditions originating in the perinatal period (P04-P96) (from M31)
certain infectious and parasitic diseases (A00-B99) (from M31)
compartment syndrome (traumatic) (T79.A-) (from M31)
complications of pregnancy, childbirth and the puerperium (O00-O9A) (from M31)
congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99) (from M31)
endocrine, nutritional and metabolic diseases (E00-E88) (from M31)
injury, poisoning and certain other consequences of external causes (S00-T88) (from M31)
neoplasms (C00-D49) (from M31)
symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94) (from M31)

M31.10Thrombotic microangiopathy, unspecifiedBillable
M31.11Hematopoietic stem cell transplantation-associated thrombotic microangiopathy [HSCT-TMA]Billable
M31.19Other thrombotic microangiopathyBillable