CCS (AHIMA) study guide
CCS · Work through your exam, one topic at a time.
The Certified Coding Specialist (CCS) is an AHIMA credential for individuals skilled in classifying medical data from medical records. CCS holders demonstrate tested skills in data quality and accuracy as well as mastery of coding proficiency, and the coded data they produce is used by hospitals and providers to obtain reimbursement from insurers and government programs such as Medicare and Medicaid; researchers and public health officials also use it to monitor patterns and explore new interventions. The CCS study guide has 5 sections and about 1,659 words.
01Coding Knowledge and Skills
This domain tests applied code selection across ICD-10-CM, ICD-10-PCS, CPT, and HCPCS Level II, in both inpatient and outpatient settings, plus the grouping logic (MS-DRG, APC) that follows. Know the difference between Excludes1 (the two conditions are never reported together) and Excludes2 (the second condition is not inherent to the first and may be coded if documented as distinct).
339 words, about 2 min02Coding Documentation
The record must be legible, authenticated, complete, and timely, and it must establish the link between a condition and the encounter. Inpatient records typically include the H&P, progress notes, consultations, operative report, pathology, and discharge summary; outpatient records center on the chief complaint, history, exam, and medical decision making.
345 words, about 2 min03Provider Queries
A query exists to clarify documentation so the record accurately reflects the patient's clinical picture and severity of illness. A query is not a tool to increase reimbursement, to dictate a diagnosis, or to compensate for a provider who declined to document.
343 words, about 2 min04Regulatory Compliance
Compliance means submitting claims that are supported by the record and by payer rules - no more, no less. Know the seven elements of an effective compliance program (written policies and procedures, a designated compliance officer and committee, effective training and education, effective lines of communication, internal monitoring and auditing, well-publicized disciplinary standards, and prompt response and corrective action).
318 words, about 2 min05Information Technologies
The work flows through an EHR (the clinical record), an encoder (code lookup and edit checks), a grouper (MS-DRG, APR-DRG, APC assignment from coded data), a chargemaster (the link between CPT/HCPCS and billable charges), and claims scrubbers that apply NCCI and payer edits before submission. Sequencing in the encoder changes the grouper output, so a diagnosis order error becomes a payment error.
314 words, about 2 min