Home > 2013 ICD-9-CM Diagnosis Codes > Diseases Of The Circulatory System 390-459 > Diseases Of Arteries, Arterioles, And Capillaries 440-449 > Polyarteritis nodosa and allied conditions 446-
2013 ICD-9-CM Diagnosis Code 446.6
Thrombotic microangiopathy
- The syndromes of microangiopathic hemolytic anemia, thrombocytopenia, and variable signs of organ impairment, due to platelet aggregation in the microcirculation.
- ICD-9-CM 446.6 is a billable medical code that can be used to specify a diagnosis on a reimbursement claim.
Applies To
- Moschcowitz's syndrome
- Thrombotic thrombocytopenic purpura
Convert 446.6 to ICD-10-CM 
ICD-9-CM 446.6 converts directly to:
- 2013 ICD-10-CM M31.1 Thrombotic microangiopathy
ICD-9-CM Volume 2 Index entries containing back-references to 446.6:
- Anemia 285.9
hemolytic 283.9
acquired 283.9- acute 283.9
- autoimmune (acquired) 283.0
- chronic 282.9
idiopathic 283.9
- cold type (secondary) (symptomatic) 283.0
- congenital (spherocytic) (see also Spherocytosis) 282.0
- nonspherocytic - see Anemia, hemolytic, nonspherocytic, congenital
- drug-induced 283.0
- enzyme deficiency 282.2
- due to
- elliptocytotic (see also Elliptocytosis) 282.1
- familial 282.9
- hereditary 282.9
- idiopathic (chronic) 283.9
- infectious (acquired) 283.19
- mechanical 283.19
- microangiopathic 283.19
- nonautoimmune 283.10
- nonspherocytic
- of or complicating pregnancy 648.2
- resulting from presence of shunt or other internal prosthetic device 283.19
- secondary 283.19
- autoimmune 283.0
- sickle-cell - see Disease, sickle-cell
- Stransky-Regala type (Hb-E) (see also Disease, hemoglobin) 282.7
- symptomatic 283.19
- toxic (acquired) 283.19
- uremic (adult) (child) 283.11
- warm type (secondary) (symptomatic) 283.0
- Baehr-Schiffrin disease (thrombotic thrombocytopenic purpura) 446.6
- Disease, diseased - see also Syndrome
- Baehr-Schiffrin (thrombotic thrombocytopenic purpura) 446.6
- Microangiopathy 443.9
- thrombotic 446.6
- Moschcowitz's (thrombotic thrombocytopenic purpura) 446.6
- Moschcowitz's syndrome (thrombotic thrombocytopenic purpura) 446.6
- Purpura 287.2
- thrombocytopenic (see also Thrombocytopenia) 287.30
- thrombotic 446.6
- thrombocytic 446.6
- thrombocytopenic 446.6
- Syndrome - see also Disease
- disseminated platelet thrombosis 446.6
- Moschcowitz (-Singer-Symmers) (thrombotic thrombocytopenic purpura) 446.6
- Thrombocytopenia, thrombocytopenic 287.5
- purpura (see also Purpura, thrombocytopenic) 287.30
- thrombotic 446.6
- Thrombosis, thrombotic (marantic) (multiple) (progressive) (vein) (vessel) 453.9
- arteriolar-capillary platelet, disseminated 446.6
- capillary 448.9
- arteriolar, generalized 446.6
- platelet 446.6
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 446.6 is one of thousands of ICD-9-CM codes used in healthcare. Although ICD-9-CM and CPT codes are largely numeric, they differ in that CPT codes describe medical procedures and services. Can't find a code? Start at the root of ICD-9-CM, check the 2013 ICD-9-CM Index or use the search engine at the top of this page to lookup any code.
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