I97.2
Postmastectomy lymphedema syndrome
I97.2 (also written I972) is a billable ICD-10-CM diagnosis code for postmastectomy lymphedema syndrome. It is part of the FY2027 code set, effective October 1, 2026. It is one of the 39 codes in category I97 (Intraoperative and postprocedural complications and disorders of circulatory system, not elsewhere classified). The Alphabetic Index lists it under 13 entries. Its coding notes include 11 Excludes2 entries.
Guidelines tip
From the FY2027 Official Guidelines. ICD10Ref adds no rules of its own.
Intraoperative and postprocedural complications are coded from the body system chapters unless the complication is specifically indexed to a T code.
Excludes2
Not included here. Both codes may be reported if the patient has both conditions.
- postprocedural shock (T81.1-)
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.-)
Care settings
How CMS programs treat this code. These are CMS claim edits and list entries, not coverage or eligibility rules.
Home Health Primary
Accepted as the primary (principal) diagnosis on a home health claim. The Home Health Grouper assigns it to the Wound clinical group.
Source: CMS Home Health Grouper Software v07.2.26, effective October 1, 2026Inclusion terms
Conditions classified to this code.
- Elephantiasis due to mastectomy
- Obliteration of lymphatic vessels
Alphabetic Index terms
Terms the official Alphabetic Index lists for this code. 13 entries
- Complication (s) (from) (of), circulatory system, postprocedural, lymphedema after mastectomy
- Complication (s) (from) (of), surgical procedure (on), elephantiasis or lymphedema, postmastectomy
- Complication (s) (from) (of), surgical procedure (on), lymphedema, postmastectomy
- Complication (s) (from) (of), surgical procedure (on), postmastectomy lymphedema syndrome
- Edema, edematous (infectious) (pitting) (toxic), lymphatic, due to mastectomy
- Elephantiasis (nonfilarial), due to, mastectomy
- Elephantiasis (nonfilarial), lymphatic vessel, due to mastectomy
- Elephantiasis (nonfilarial), surgical, postmastectomy
- Lymphedema (acquired), postmastectomy
- Lymphedema (acquired), surgical NEC, postmastectomy (syndrome)
- Obliteration, lymphatic vessel, due to mastectomy
- Postmastectomy lymphedema (syndrome)