I89.9
Noninfective disorder of lymphatic vessels and lymph nodes, unspecified
I89.9 (also written I899) is a billable ICD-10-CM diagnosis code for noninfective disorder of lymphatic vessels and lymph nodes, unspecified. It is part of the FY2027 code set, effective October 1, 2026. It is one of the 4 codes in category I89 (Other noninfective disorders of lymphatic vessels and lymph nodes). The Alphabetic Index lists it under 2 entries. Its coding notes include 4 Excludes1 entries and 10 Excludes2 entries.
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 (10 notes)
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- 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)
- systemic connective tissue disorders (M30-M36)
- transient cerebral ischemic attacks and related syndromes (G45.-)
Inclusion terms
Conditions classified to this code.
- Disease of lymphatic vessels NOS
Alphabetic Index terms
Terms the official Alphabetic Index lists for this code. 2 entries