D77Other disorders of blood and blood-forming organs in diseases classified elsewhere

D77 is the ICD-10-CM diagnosis code for other disorders of blood and blood-forming organs in diseases classified elsewhere. It belongs to 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.

Don't report D77 together with the conditions in its Excludes1 note: rupture of spleen due to Plasmodium vivax malaria (B51.0), splenitis, splenomegaly in late syphilis (A52.79) and splenitis, splenomegaly in tuberculosis (A18.85).

Code first underlying disease, such as: amyloidosis (E85.-), congenital early syphilis (A50.0-), echinococcosis (B67.0-B67.9), malaria (B50.0-B54) and 2 more.

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 814 (Reticuloendothelial and Immunity Disorders with MCC, relative weight 2.0729), DRG 815 (Reticuloendothelial and Immunity Disorders with CC, relative weight 1.0444) and DRG 816 (Reticuloendothelial and Immunity Disorders without CC/MCC, relative weight 0.7381), in 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 is a manifestation code, so it describes the effect of an underlying disease and can't be the principal diagnosis. Code the underlying condition first.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Before ICD-10, this condition was coded in ICD-9-CM as 289.89 (other specified diseases of blood and blood-forming organs).