D59.9 — Acquired hemolytic anemia, unspecified

BillableUnspecifiedCC

Is D59.9 billable?

Yes, but D59.9 is an unspecified code. D59.9 is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, D59.9 is an unspecified or catch-all code. Payers apply additional scrutiny to unspecified codes and many deny them when the medical record supports a more specific option, so check the documentation before selecting D59.9 — the more specific alternatives are listed below.

More specific alternatives

D59.9 at a glance

Code	D59.9
Description	Acquired hemolytic anemia, unspecified
Billable	Yes
Code set	ICD-10-CM FY2027
Valid for encounters	October 1, 2026 – September 30, 2027

Which MS-DRGs does D59.9 group to?

D59.9 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

As a secondary diagnosis, D59.9 is a complication or comorbidity (CC), which can move a stay into a higher-paying DRG.

How is D59.9 listed in the Alphabetic Index?

These are the routes through the Alphabetic Index that lead to D59.9. They show the wording a clinician may have documented, which often differs from the Tabular description.

Hemoglobinemia
Icteroanemia, hemolytic (acquired)
Icterus › hematogenous
Icterus › hemolytic
Jaundice › hematogenous (yellow)
Jaundice › hemolytic (yellow)
Anemia › hemolytic › acquired (essential) (general) (hemoglobin deficiency) (infantile) (primary) (profound)
Anemia › hemolytic › acute (essential) (general) (hemoglobin deficiency) (infantile) (primary) (profound)
Anemia › hemolytic › idiopathic (essential) (general) (hemoglobin deficiency) (infantile) (primary) (profound)
Anemia › idiopathic › hemolytic, chronic (essential) (general) (hemoglobin deficiency) (infantile) (primary) (profound)
Anemia › chronic › hemolytic › idiopathic (essential) (general) (hemoglobin deficiency) (infantile) (primary) (profound)
Anemia › hemolytic › chronic › idiopathic (essential) (general) (hemoglobin deficiency) (infantile) (primary) (profound)

Inclusion terms

Alternative wording in documentation that is classified to D59.9.

Idiopathic hemolytic anemia, chronic

Excludes2 — not included here — inherited from Chapter 3

The conditions below are not part of D59.9, but a patient may have both at the same time. When documentation supports it, D59.9 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)

How long has D59.9 existed?

D59.9 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.

Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.