M31.10 – Thrombotic microangiopathy, unspecified
ICD-10-CM 2027 diagnosis code · Systemic connective tissue disorders
ICD-10-CM code
M31.10
- Code
M31.10(claims format:M3110)- Description
- Thrombotic microangiopathy, unspecified
- Billable
- Yes – valid for HIPAA-covered transactions
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 13. Diseases of the musculoskeletal system and connective tissue (M00-M99)
- Block
- M30-M36 Systemic connective tissue disorders
- Parent codes
- M31 › M31.1
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
Block M30-M36
Includes:
- autoimmune disease NOS
- collagen (vascular) disease NOS
- systemic autoimmune disease
- systemic collagen (vascular) disease
Excludes1 (not coded here):
- autoimmune disease, single organ or single cell-type -code to relevant condition category
Index terms for M31.10
Entries in the ICD-10-CM alphabetic index that lead to this code:
Related codes in M31.1
Frequently asked questions
What is ICD-10 code M31.10?
M31.10 is the ICD-10-CM code for thrombotic microangiopathy, unspecified, in the block M30-M36 (Systemic connective tissue disorders).
Is M31.10 a billable code?
Yes. M31.10 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does M31.10 belong to?
It belongs to category M31 – Other necrotizing vasculopathies.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.