M31.1 - Thrombotic microangiopathy

The ICD 10 Code for Thrombotic microangiopathy is listed as M31.1.
Additional information concerning this code and description can be found below including ICD 9 crosswalks / GEMS, chapter information, and DRGs where available.

ICD 10 CM Field	Value
Diagnosis Code:	M31.1
Description:	Thrombotic microangiopathy Thrombotic thrombocytopenic purpura
Diagnostic Related Groups (MS-DRG v30.0)	545 - Connective Tissue Disorders W Mcc 546 - Connective Tissue Disorders W Cc 547 - Connective Tissue Disorders W/o Cc/mcc

Chapter	Diseases of the musculoskeletal system and connective tissue (M00-M99)
Block	Systemic connective tissue disorders (M30-M36)
Parent	M31 - Other necrotizing vasculopathies
ICD-9-CM Diagnosis Codes General Equivalence Mappings (GEMS):
ICD 9 Dx Code:	446.6 - Thrombotic microangiopathy
ICD-10-CM Siblings (same level / similar specificity) of M31.1:
M31.0 - Hypersensitivity angiitis
M31.2 - Lethal midline granuloma
M31.3 - Wegener's granulomatosis
M31.4 - Aortic arch syndrome [Takayasu]
M31.5 - Giant cell arteritis with polymyalgia rheumatica
M31.6 - Other giant cell arteritis
M31.7 - Microscopic polyangiitis
M31.8 - Other specified necrotizing vasculopathies
M31.9 - Necrotizing vasculopathy, unspecified