ICD-10-CM 2027
ICD-10 code for critical illness polyneuropathy
From the official ICD-10-CM alphabetic index entry “Polyneuropathy (peripheral) › critical illness”. Page updated September 29, 2026.
About coding critical illness polyneuropathy
The ICD-10-CM code for critical illness polyneuropathy is G62.81 (Critical illness polyneuropathy).
Within G62.8 (other specified polyneuropathies), G62.81 is specifically for critical illness polyneuropathy. Related codes cover Radiation-induced polyneuropathy (G62.82) and other specified polyneuropathies (G62.89).
As a secondary diagnosis it is a CC (complication or comorbidity), which can move an inpatient stay into the "with CC" MS-DRG of its family, unless the principal diagnosis excludes it.
In MS-DRG v44.0, it is part of the grouping logic for DRG 073 (Cranial and Peripheral Nerve Disorders with MCC, relative weight 1.5779) and DRG 074 (Cranial and Peripheral Nerve Disorders without MCC, relative weight 1.0173), in MDC 01 (Diseases and Disorders of the Nervous System), 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 critical illness polyneuropathy ICD-10 codes
What is the ICD-10 code for critical illness polyneuropathy?
- G62.81 — Critical illness polyneuropathy.
Is G62.81 billable?
- Yes. G62.81 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can G62.81 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict G62.81 as a principal diagnosis.
Is G62.81 a CC or MCC?
- G62.81 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.