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HCC Buddy Blog
71 more articles. Latest article above.
E66.2 Maps to HCC 48 in V28. Do Not Also Code E66.01
September 4, 2026 · 7 min read
E11.9 Maps to HCC 38 in V28, Not HCC 37
August 28, 2026 · 7 min read
Bullous Pemphigoid Is L12.0, Not L10.0. Both Still Map to HCC 387
August 27, 2026 · 7 min read
E11.65 Maps to HCC 38 in V28, Not HCC 37
August 26, 2026 · 7 min read
E11.22 Maps to HCC 37 in V28. You Still Need the N18 Stage.
August 25, 2026 · 8 min read
E11.52 vs I70.261: There Is No Code-First Row
August 25, 2026 · 8 min read
I70.209 Does Not Capture in V28: Which PAD Codes Still Do
August 21, 2026 · 8 min read
Ulcer HCC Desk Guide: Which L89 and L97 Codes Capture in V28
August 20, 2026 · 11 min read
HCC 213 Cardio-Respiratory Failure: What Still Captures in V28
August 19, 2026 · 10 min read
Housing Z Codes on October 1: The CC to NonCC Desk Table
August 18, 2026 · 8 min read
BIA-ALCL ICD-10 Coding: C84.7A, Z98.86, and HCC 19
July 21, 2026 · 8 min read
Stroke Sequelae in V28: Which I69 Codes Carry an HCC, and Which Capture Nothing
July 3, 2026 · 9 min read
7 Behavioral Health Diagnoses That Carry an HCC Under V28 (and the Specificity That Keeps Them)
June 29, 2026 · 11 min read
Acute vs History-of: 6 ICD-10 Calls That Decide Whether the HCC Holds Up
June 29, 2026 · 10 min read
Status (Z) Codes That Carry an HCC Under V28, and the Ones That Don't
June 22, 2026 · 8 min read
8 Chronic Conditions to Recheck for Each Risk-Adjustment Data Period
June 22, 2026 · 8 min read
ICD-10-CM Changes 2027: All 238 New and 21 Deleted Codes
June 15, 2026 · 18 min read
RADV Audit Schedule 2026: What HCC Coders Should Check First
June 5, 2026 · 7 min read
2027 MA Rate Announcement: What HCC Coders Need to Know
June 5, 2026 · 7 min read
CY 2026 Midyear Risk Scores: What HCC Coders Should Recheck Before July
June 5, 2026 · 7 min read
Depression Screening in MA Star Ratings: What HCC Coders Should Know
June 5, 2026 · 7 min read
Telehealth Diagnoses For Risk Adjustment: Check The Source Before You Keep The HCC
June 5, 2026 · 7 min read
CMS Coding Pattern Adjustment 2027: What the 0% Row on the Fact Sheet Actually Means
June 5, 2026 · 7 min read
Problem Lists Alone Do Not Validate HCCs: What RADV Auditors Check
June 5, 2026 · 7 min read
AI-Generated Notes Still Need Coder QA Before You Keep the HCC
June 5, 2026 · 7 min read
FY 2026 ICD-10-CM Guidelines: What HCC Coders Should Recheck
May 18, 2026 · 8 min read
What AI Can and Can't Do in HCC Risk Adjustment Coding Right Now
April 16, 2026 · 14 min read
Depression HCC Coding: F32.9 Has No V28 HCC
April 10, 2026 · 12 min read
How to Increase HCC Coding Speed: Tips From Coders Who Did It
April 10, 2026 · 10 min read
Best HCC Coding Tools 2026: Honest Comparison
April 10, 2026 · 6 min read
Free HCC Coding Tool: What You Get Without Paying a Dime
April 10, 2026 · 8 min read
Obesity HCC Coding: E66.9 Has No V28 HCC
April 10, 2026 · 12 min read
Dementia HCC V28: Three Tiers, Not One
April 10, 2026 · 11 min read
Atrial Fibrillation HCC Coding: I48 & V28
April 10, 2026 · 10 min read
HCC Chrome Extension: Why In-EHR Coding Tools Change Everything
April 10, 2026 · 9 min read
CKD HCC Coding: N18.9 Has No V28 HCC
April 9, 2026 · 12 min read
COPD HCC Coding: J44.9 Still Maps to HCC 280
April 9, 2026 · 12 min read
HCC Hierarchy and Trumping Rules Explained: Which Codes Override Which in V28
April 9, 2026 · 12 min read
ICD-10 Combination Codes and RAF Under V28
April 9, 2026 · 12 min read
CMS-HCC vs HHS-HCC: Key Differences for Coders
April 9, 2026 · 11 min read
Risk Adjustment Eligible CPT Codes, 2026 Reference
April 9, 2026 · 6 min read
Heart Failure HCC Coding: Systolic vs Diastolic Guide
April 9, 2026 · 12 min read
HCC Coding Cheat Sheet 2026: Quick Reference for Every Risk Adjustment Coder
April 9, 2026 · 15 min read
Provider Query Templates for Risk Adjustment Coders (Compliant Examples)
April 8, 2026 · 9 min read
RADV Audit Prep: How to Pass a Risk Adjustment Data Validation Audit
April 8, 2026 · 10 min read
CMS Encounter Data Submission Deadlines: A Plan-Side Reference
April 8, 2026 · 8 min read
MEAT Documentation Review: Uses, Limits, and Chart Examples
April 8, 2026 · 10 min read
Drug-to-Diagnosis Lookup for Missed HCC Opportunities
April 7, 2026 · 7 min read
CRC Exam Prep Guide: What to Study, How to Practice, and What to Expect
April 7, 2026 · 9 min read
RADV Audit Notices Sent to 471 MA Contracts, What to Do Now
March 31, 2026 · 9 min read
CMS May Ban Unlinked Chart Reviews from MA Risk Scores
March 24, 2026 · 7 min read
OIG MA Compliance Guidance 2026: What Coders Must Know
March 23, 2026 · 8 min read
April 2026 ICD-10-CM Update: Excludes & Sequencing Changes
March 22, 2026 · 7 min read
CMS RADV Audit Expansion in 2026: What HCC Coders Need to Know
March 21, 2026 · 7 min read
ICD-10 Codes That Do NOT Map to HCC, The List Coders Keep Getting Wrong
March 18, 2026 · 9 min read
Codify vs HCC Buddy: Which Tool Do HCC Coders Actually Need?
March 18, 2026 · 7 min read
ICD-10-CM HCC Mapping Tool: What Every HCC Coder Needs in 2026
March 18, 2026 · 7 min read
RAF Score Calculator: How to Calculate Risk Adjustment Factor for Medicare Advantage
March 18, 2026 · 8 min read
Top 10 Most Commonly Miscoded HCCs
March 9, 2026 · 11 min read
ICD-10 to HCC Mapping Quick Reference
March 8, 2026 · 10 min read
How RAF Scores Work: Risk Adjustment Factor Scores Explained
March 8, 2026 · 11 min read
ICD-10-CM to HCC Mapping: How It Works
March 7, 2026 · 6 min read
Diabetes HCC Coding 2026: V28 E11 Map and MEAT
March 7, 2026 · 12 min read
What Is HCC Coding? A Complete Guide for 2026
March 7, 2026 · 8 min read
MEAT Criteria for HCC Coding: Documentation Requirements
March 6, 2026 · 5 min read
RAF Score Calculation: A Step-by-Step Guide
March 5, 2026 · 6 min read
Excludes 1 vs Excludes 2 in ICD-10: What Every Coder Needs to Know
March 4, 2026 · 5 min read
HCC Buddy vs Traditional Encoders: Compare Your Coding Workflow
March 3, 2026 · 5 min read
Top 10 Most Common HCC Codes Every Coder Should Know
March 2, 2026 · 7 min read
How to Use an ICD-10 Encoder for Risk Adjustment
March 1, 2026 · 6 min read
NPI Lookup Guide: Finding Provider Information Fast
February 28, 2026 · 5 min readCoding guides, CMS updates and reference tools from the HCC Buddy Coding Team.