ICD-10-CM 2027
ICD-10 code for complicated grief
From the official ICD-10-CM alphabetic index entry “Grief › complicated”. Page updated September 29, 2026.
About coding complicated grief
The ICD-10-CM code for complicated grief is F43.81 (Prolonged grief disorder).
Within F43.8 (other reactions to severe stress), F43.81 is specifically for prolonged grief disorder. Related codes cover other reactions to severe stress (F43.89).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 882 (Neuroses Except Depressive, relative weight 0.9952), in MDC 19 (Mental Diseases and Disorders), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
Common questions about complicated grief ICD-10 codes
What is the ICD-10 code for complicated grief?
- F43.81 — Prolonged grief disorder.
Is F43.81 billable?
- Yes. F43.81 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can F43.81 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict F43.81 as a principal diagnosis.
Is F43.81 a CC or MCC?
- No. F43.81 is neither a CC nor an MCC under MS-DRG v44.0.