2026 ICD-10-CM Diagnosis Code D77Other disorders of blood and blood-forming organs in diseases classified elsewhere
ICD-10-CM Codes›D50–D89›D70-D77›D77
- Billable — Valid for Submission
- Not Chronic
D77 is a billable ICD-10-CM diagnosis code for other disorders of blood and blood-forming organs in diseases classified elsewhere. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 814 through 816. The code is a manifestation code that cannot be reported as the principal diagnosis. Coders also document this condition as autoimmune reaction following infectious disease. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified and unspecified hematologic conditions.
Code Identity
Code Classification
Code EditsBilling
Medicare Code Editor checks that affect claim validity for D77.
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Autoimmune reaction following infectious disease
- Hyperreactive malarial splenomegaly syndrome
- Lymphoid system finding
- Secondary cytopenia
Tabular List NotesGuidance
Coding notes and annotation back-references applicable to this code.
Code First
- underlying disease, such as:
- amyloidosis E85
- congenital early syphilis A50.0
- echinococcosis B67.0 B67.9
- malaria B50.0 B54
- schistosomiasis bilharziasis B65.0 B65.9
- vitamin C deficiency E54
Type 1 Excludes
- rupture of spleen due to Plasmodium vivax malaria B51.0
- splenitis, splenomegaly in late syphilis A52.79
- splenitis, splenomegaly in tuberculosis A18.85
Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions, the ICD-10-CM has a coding convention that requires the underlying condition be sequenced first followed by the manifestation. Wherever such a combination exists, there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation.
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
Blood Disorders
Your blood is living tissue made up of liquid and solids. The liquid part, called plasma, is made of water, salts and protein. Over half of your blood is plasma. The solid part of your blood contains red blood cells, white blood cells and platelets.
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert D77 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About D77Overview
Is D77 a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report other disorders of blood and blood-forming organs in diseases classified elsewhere on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What MS-DRG does D77 group to?
On inpatient claims, other disorders of blood and blood-forming organs in diseases classified elsewhere maps to MS-DRG 814, 815, 816, with relative weights from 0.6320 to 2.1267 depending on complications. Higher weights mean higher Medicare reimbursement.
Can D77 be a principal diagnosis?
No. This is a manifestation code: other disorders of blood and blood-forming organs in diseases classified elsewhere describes the manifestation of an underlying disease rather than the disease itself, so the underlying condition is sequenced first.
What is the ICD-9 equivalent of D77?
Under the General Equivalence Mappings, other disorders of blood and blood-forming organs in diseases classified elsewhere converts to ICD-9-CM 289.89 (blood diseases NEC). The mapping is approximate, so confirm the match fits the documentation.
Footnotes
[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.
