Data Innovations - ICD-10-CM/PCS Resources: References

ICD-10-CM/PCS Resources: References

The materials included here provide references and background information on International Classification of Diseases, Tenth Revision, Clinical Modification/Procedure Coding System (ICD-10-CM/PCS), as well as information for the public from the U.S. Department of Health and Human Services (HHS) and Centers for Disease Control and Prevention (CDC).

Quick View Comparison of ICD-9-CM and ICD-10-CM/PCS

	ICD-9-CM	ICD-10-CM/PCS
ICD-9-CM and ICD-10-CM/PCS Code Sets
Diagnosis	14,025 codes	68,069 codes
Procedures	3,824 codes	72,589 codes
ICD-10-CM/PCS Code Structure Changes (selected details)
Diagnosis Structure	3-5 characters First character is numeric or alpha Characters 2�5 are numeric	3-7 characters Character 1 is alpha Character 2 is numeric Characters 3�7 can be alpha or numeric
Procedure Structure	3-4 characters All characters are numeric All codes have at least 3 characters	ICD-10-PCS has 7 characters Each can be alpha or numeric Numbers 0�9; letters A�H, J�N, P�Z
Source: Centers for Disease Control and Prevention. The ICD-10 Transition and Public Health Surveillance � What You Need to Know. Table 1. Key Differences Between Code Sets. December 2013. http://www.cdc.gov/nchs/icd/data/CDC_ICD-10_Transition_FactSheet_12_2013.pdf

What You Need to Know

Presentations:

Transitioning to ICD-10-CM and ICD-10-PCS presentation by Donna Pickett, co-chair of the CDC ICD-10 Transition Workgroup, March 2014

Articles on Transitioning to New Classification Systems for ICD

Comparability ratios for ICDA-8 and ICD-9-CM This report describes changes in the diagnostic coding classification system between ICDA-8 and ICD-9-CM and provides comparability ratios that can be used to estimate trends over time.

Comparability of cause-of-death between ICD revisions Studies are routinely done to compare revisions of ICD classifications of the cause of death. The Centers for Disease Control and Prevention (CDC) National Center for Health Statistics (NCHS), National Vital Statistics System provides source documents and reports comparing classification schemas as well as statistical methods for calculating trends in mortality using various classification schemes.

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Data Innovations - ICD-10-CM/PCS Resources: References