1. Chapter 7
ICD-10 Codes

2. ICD-10-CM ICD-10-CM scheduled to replace ICD-9-CM
Target implementation date 2013
Each world government is responsible for adapting the ICD-10 to suit its own country’s needs.
In the United States, the Centers for Medicare and Medicaid Services is responsible for developing the procedure classification entitled The ICD-10-PCS (which stands for Procedure Coding System).
The National Center for Health Statistics is responsible for the disease classification system (Volumes 1 and 2) entitled ICD-10-CM.
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3. Improvements in ICD-10-CM
More relevant ambulatory and managed care encounter codes
Expanded injury codes
Combination diagnosis/symptom codes
Six digits, maximum (Certain categories have 7th character extensions)
(Cont’d…)
The ICD-10-CM will replace ICD-9-CM, Volumes 1 and 2.
Extensive expansion of injury codes allows for greater specificity.
The creation of combination diagnosis/symptom codes will reduce the number of codes needed to fully describe a condition.
New drafts of ICD-10-CM have included up to seven digits.
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4. Improvements More fourth and fifth digits added Updated diabetes codes
(…Cont’d)
More fourth and fifth digits added
Updated diabetes codes
Greater overall specificity
Addition of sixth digit
Addition of placeholders (x)
Diabetes mellitus codes will also have greater specificity.
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5. ICD-10-CM Structure 21 Chapters V and E codes incorporated
Addition of chapters for
Eye and Adnexa
Ear and Mastoid Process
The supplementary classifications found in the ICD-9-CM are excluded.
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6. Crosswalk ICD-9-CM code cross-walked to new ICD-10-CM code Figure: 7.2
As part of the conversion, a crosswalk has been developed.
This converts the ICD-9-CM codes to ICD-10-CM codes.
Sometimes, more than one ICD-10-CM code crosswalks from the ICD-9-CM code; possible matches are noted in a “best match” column.
Courtesy U.S. Department of Health and Human Services, Centers for Medicare and Medicaid Services.
ICD-9-CM code cross-walked to new ICD-10-CM code
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7. Index Main terms and subterms Figure: 7.3 The Index is alphabetic.
The Index presents the main terms in bold type with subterms indented under the main term.
Sometimes, only four digits of the code are given; coders must refer to the Tabular List.
Figure: 7.3
Modified from Buck CJ: ICD-10-CM, Volumes 1 and 2, Professional Edition, St. Louis, 2010, Saunders.
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8. Tabular
Figure: 7.4
The 21 chapters of the Tabular are arranged in numeric order after the first letter assigned to the chapter.
Modified from Buck CJ: ICD-10-CM, Volumes 1 and 2, Professional Edition, St. Louis, 2010, Saunders.
Each section begins with unique letter and codes arranged in numerical order
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9. ICD-10-PCS Will replace Volume 3, Procedures of ICD-9-CM
Currently being piloted
Four objectives guide development:
Completeness
Expandability
Multi-axial
Standardized terminology
Four major objectives guided the development of the ICD-10-PCS: completeness, expandability, multiaxial nature, and standardized terminology.
The ICD-10-PCS has a seven-character alphanumeric code structure.
Characters 2 through 7 have a standard meaning within each section but may have different meanings across sections.
If a character is not applicable to a specific procedure, the letter Z is used.
The Tabular List provides the remaining characters needed to complete the code given in the Index.
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10. Conclusion – ICD-10 Codes
Chapter 7
Conclusion – ICD-10 Codes