ICD-10-CM 2027 diagnosis code
D75.822Immune-mediated heparin-induced thrombocytopenia
D75.822 is a valid, billable ICD-10-CM code for immune-mediated heparin-induced thrombocytopenia. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.
Code last changed in FY2023 (effective October 1, 2022). Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About D75.822
D75.822 is the ICD-10-CM diagnosis code for Immune-mediated heparin-induced thrombocytopenia. It belongs to category D75 (other and unspecified diseases of blood and blood-forming organs), block D70-D77 (other disorders of blood and blood-forming organs) and chapter 3 (diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.
Within D75.82 (Heparin induced thrombocytopenia (HIT)), D75.822 is specifically for Immune-mediated heparin-induced thrombocytopenia. Related codes cover Non-immune heparin-induced thrombocytopenia (D75.821), other heparin-induced thrombocytopenia syndrome (D75.828) and heparin-induced thrombocytopenia, unspecified (D75.829).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 791 (Prematurity with Major Problems, relative weight 4.1075), DRG 793 (Full Term Neonate with Major Problems, relative weight 4.2195) and DRG 813 (Coagulation Disorders, relative weight 1.5257), in MDC 15 (Newborns and Other Neonates with Conditions Originating in the Perinatal Period) and MDC 16 (Diseases and Disorders of the Blood and Blood Forming Organs and Immunological Disorders), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
It was added in FY2023, effective October 1, 2022.
Coding notes
- Immune-mediated HIT
- Type 2 heparin-induced thrombocytopenia
Notes that apply from higher levels
Instructions written at a parent level also apply to D75.822.
› From D75.82 Heparin induced thrombocytopenia (HIT)
- code, if applicable, for adverse effect of heparin (T45.515-)
Broader instructions also apply from Chapter 3: Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism.
Alphabetic index entries
2 entriesTerms in the official ICD-10-CM index that lead to D75.822.
MS-DRG v44.0 grouping
All DRGs →Inpatient MS-DRGs this diagnosis can group to, as the principal or a secondary diagnosis, depending on the rest of the claim.
MDC 15 · Newborns and Other Neonates with Conditions Originating in the Perinatal Period
MDC 15 · Newborns and Other Neonates with Conditions Originating in the Perinatal Period
MDC 16 · Diseases and Disorders of the Blood and Blood Forming Organs and Immunological Disorders
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2023 (effective 10/1/2022): Added
- No changes since FY2023.
Common questions about D75.822
Is D75.822 billable?
- Yes. D75.822 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can D75.822 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict D75.822 as a principal diagnosis.
Is D75.822 a CC or MCC?
- No. D75.822 is neither a CC nor an MCC under MS-DRG v44.0.
What DRG does D75.822 group to?
- D75.822 is used in the MS-DRG v44.0 logic for MS-DRG 791 (Prematurity with Major Problems), MS-DRG 793 (Full Term Neonate with Major Problems) and MS-DRG 813 (Coagulation Disorders). Which one applies depends on whether it is the principal diagnosis and on the rest of the claim.