D75.821 — Non-immune heparin-induced thrombocytopenia
Is D75.821 billable?
Yes — D75.821 is billable for FY2027. D75.821 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. D75.821 may be submitted for encounters from October 1, 2026 through September 30, 2027.
D75.821 at a glance
| Code | D75.821 |
|---|---|
| Description | Non-immune heparin-induced thrombocytopenia |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does D75.821 group to?
D75.821 sits in MDC 15 and helps define the logic of 1 MS-DRG (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 791Prematurity with Major Problemsmedical
How is D75.821 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to D75.821. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Thrombocytopenia, thrombocytopenic › heparin-associated
- Thrombocytopenia, thrombocytopenic › heparin induced › non-immune
- Thrombocytopenia, thrombocytopenic › heparin induced › type 1
Inclusion terms
Alternative wording in documentation that is classified to D75.821.
- Non-immune HIT
- Type 1 heparin-induced thrombocytopenia
Use additional code — inherited from D75.82
Report an additional code alongside D75.821 to fully describe the condition. D75.821 is sequenced first.
- code, if applicable, for adverse effect of heparin (T45.515-)
Excludes2 — not included here — inherited from Chapter 3
The conditions below are not part of D75.821, but a patient may have both at the same time. When documentation supports it, D75.821 and the excluded code may both be reported.
- autoimmune disease (systemic) NOS (M35.9)
- certain conditions originating in the perinatal period (P00-P96)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- human immunodeficiency virus [HIV] disease (B20)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
Excludes2 — not included here — inherited from D75
The conditions below are not part of D75.821, but a patient may have both at the same time. When documentation supports it, D75.821 and the excluded code may both be reported.
How long has D75.821 existed?
D75.821 first appears in FY2023.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.