D72.18
Eosinophilia in diseases classified elsewhere
D72.18 (also written D7218) is a billable ICD-10-CM diagnosis code for eosinophilia in diseases classified elsewhere. It is part of the FY2027 code set, effective October 1, 2026. It is one of the 22 codes in category D72 (Other disorders of white blood cells). The Alphabetic Index lists it under 1 entry. Its coding notes include a Code first instruction, 3 Excludes1 entries and 12 Excludes2 entries.
Code first
If the underlying condition listed here is present and known, sequence it first.
- underlying disease, such as:
- chronic myelomonocytic leukemia (C93.1-)
Excludes1
Not coded here. The listed conditions generally should not be reported together.
Excludes2
Not included here. Both codes may be reported if the patient has both conditions.
Also from chapter/block level (9 notes)
- 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).
Alphabetic Index terms
Terms the official Alphabetic Index lists for this code. 1 entry