ICD-10 R45.851
Billable / Specific CCSuicidal ideations
About ICD-10-CM R45.851
ICD-10-CM code R45.851 represents Suicidal ideations. This is a billable/specific code in the Symptoms, Signs, and Abnormal Findings chapter (block R45). The 2026 edition of ICD-10-CM R45.851 became effective on October 1, 2025.
Coding Tips for R45.851
Specialist guidance from the PayerReady Medical Coding Team. Specificity warnings, HCC capture rules, sequencing notes.
R45.851 is designated CC for MS-DRG grouping. On inpatient claims, this code can shift the DRG to the with-CC variant when documented as a present-on-admission secondary diagnosis. Hospital CDI programs flag CC opportunities during chart review. Failure to capture this code may leave 30 to 80 percent of the inpatient stay revenue unrealized.
Inpatient DRG Impact, CC
code Suicidal ideations. As a Complication/Comorbidity (CC), this contributes to DRG severity adjustment when documented alongside the principal diagnosis.
Medicare LCD Coverage for R45.851
Local Coverage Determinations (LCDs) from CMS MACs that list R45.851 as a covered diagnosis.
Showing top 10 of 423 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing R45.851.
5 Medicare
CPT Codes Commonly Billed with R45.851
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
- 90791 Psychiatric diagnostic evaluation — any mental health dx for initial assessment, suicidal ideation, hallucinations, antisocial behavior Psychiatry
Convert R45.851 to ICD-9-CM
Per CMS General Equivalence Mappings (GEMs), useful for legacy data review and historical claim analysis.
| ICD-10 | ICD-9 | Mapping Flags |
|---|---|---|
| R45.851 | V6284 | 00000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To R45.851
Other codes in section R40-R46 (Symptoms and signs involving cognition, perception, emotional state and behavior).
ICD-10 R45.851, Billing FAQ
Is ICD-10 code R45.851 billable? +
Yes, R45.851 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
Is R45.851 a CC or MCC for inpatient DRG? +
Yes, this code is designated as CC. Documenting as a secondary diagnosis on inpatient claims can shift the DRG to a higher-weighted category.
What CPT codes are commonly billed with R45.851? +
Procedures frequently paired with R45.851 include: 90791.
What ICD-9 codes does R45.851 map to? +
Per CMS GEMs, R45.851 maps to ICD-9 codes: V6284. Useful for legacy data review and historical claim analysis.
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on July 16, 2026.
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