ICD-10-CM 2027
ICD-10 code for Rigors
From the official ICD-10-CM alphabetic index entry “Rigors”. Page updated September 29, 2026.
About coding Rigors
The ICD-10-CM code for Rigors is R68.89 (Other general symptoms and signs). The official index lists 1 more specific code, so check the documentation for details such as type, cause, site or severity before settling on R68.89.
Within R68.8, choose R68.89 (Other general symptoms and signs) only when documentation doesn't support a more specific option: early satiety (R68.81), decreased libido (R68.82), Chills (without fever) (R68.83) and jaw pain (R68.84).
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 947 (Signs and Symptoms with MCC, relative weight 1.261) and DRG 948 (Signs and Symptoms without MCC, relative weight 0.7835), in MDC 23 (Factors Influencing Health Status and Other Contacts with Health Services), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
More specific Rigors codes (official index)
- with fever R50.9 — Fever, unspecified
Common questions about Rigors ICD-10 codes
What is the ICD-10 code for Rigors?
- R68.89 — Other general symptoms and signs. More specific codes apply when the documentation supports them: R50.9.
Is R68.89 billable?
- Yes. R68.89 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can R68.89 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict R68.89 as a principal diagnosis.
Is R68.89 a CC or MCC?
- No. R68.89 is neither a CC nor an MCC under MS-DRG v44.0.