Alphabetic Index FY2027

D77

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

FY2027Chapter 3: Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism/D70–D77 Other disorders of blood and blood-forming organs

BillableComplete code, valid to report
Care settingsHospice: not accepted as primary

D77 is a billable ICD-10-CM diagnosis code for other disorders of blood and blood-forming organs in diseases classified elsewhere. It is part of the FY2027 code set, effective October 1, 2026. The Alphabetic Index lists it under 9 entries. Its coding notes include a Code first instruction, 3 Excludes1 entries and 9 Excludes2 entries.

Code first

If the underlying condition listed here is present and known, sequence it first.

This code

Excludes1

Not coded here. The listed conditions generally should not be reported together.

This code
  • rupture of spleen due to Plasmodium vivax malaria (B51.0)
  • splenitis, splenomegaly in late syphilis (A52.79)
  • splenitis, splenomegaly in tuberculosis (A18.85)

Excludes2

Not included here. Both codes may be reported if the patient has both conditions.

Also from chapter/block level (9 notes)
Inherited from Chapter 3 Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism
  • 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)

Care settings

How CMS programs treat this code. These are CMS claim edits and list entries, not coverage or eligibility rules.

Hospice: not accepted as primary

Not accepted as the principal diagnosis on a hospice claim (bill types 081x and 082x). The Integrated OCE returns an edit for this code.
Reason: Manifestation code. Report the underlying condition first (see the Code first note).

Source: CMS Integrated Outpatient Code Editor (IOCE) v27.3, effective October 1, 2026, edit 86

Alphabetic Index terms

Terms the official Alphabetic Index lists for this code. 9 entries