Coding Notes
New ICD-9-CM Diagnosis Codes
for FY 2012
By Melanie Endicott, MBA/HCM, RHIA, CCS, CCS-P
THE NEW ICD-9-CM diagnosis codes go into effect October 1, 2011. This date marks the last regular annual update to the ICD-9-CM code set before the partial code freeze. On October 1, 2012, there will be only limited code updates to ICD-9-CM to capture new technology and new diseases. There will be no up- dates to ICD-9-CM on October 1, 2013, since ICD-10-CM/PCS will go into effect on that date. The complete October 1, 2011, addenda with the changes to the ICD-9-CM tabular list and alphabetic index (volumes 1 and 2) are located on the National Center for Health Statistics Web site at www.cdc.gov/nchs/icd.htm. New, deleted, and revised ICD-9-CM diagnosis codes are available in summary tables at
www.cms.gov/ICD9ProviderDiagnosticCodes/07_summary-
tables.asp. The files include codes and their associated descriptions.
Shiga Toxin-Producing E. Coli (STEC)
Shiga toxin-producing E. coli is a type of enterohemorrhagic E.
coli bacteria that can cause illness ranging from mild intestinal disease to severe kidney complication. Subcategory 041.4,
Escherichia coli, was expanded to the fifth-digit level to identify Shiga toxin-producing E. coli (O157 041.41), other specified
Shiga toxin-producing E. coli (041.42), Shiga toxin-producing
E. coli, unspecified (041.43), and other and unspecified E. coli
(041.49).
Skin Neoplasms
All of the subcategories under category 173, Other and unspecified malignant neoplasm of skin, were expanded to the
fifth-digit level to classify basal cell carcinoma, squamous cell
carcinoma, and other specified and unspecified malignant neoplasms.
Blood Disorders
Subcategory 282.4, Thalassemias, was further expanded to include thalassemia, unspecified (282.40), alpha thalassemia
(282.43), beta thalassemia (282.44), delta-beta thalassemia
(282.45), thalassemia minor (282.46), and hemoglobin E-beta
thalassemia (282.47).
The pancytopenia subcategory was expanded to the fifth-digit
level to include antineoplastic chemotherapy-induced pancytopenia (284.11), other drug-induced pancytopenia (284.12),
and other pancytopenia (284.19).
Three new codes describing hemorrhagic disorders were also
added, including acquired hemophilia (286.52), antiphospho-lipid antibody with hemorrhagic disorder (286.53), and other
hemorrhagic disorder due to intrinsic circulating anticoagulants, antibodies, or inhibitors (286.59).
Mental, Behavioral, and Neurodevelopment Disorders
The title of chapter 5 was revised to “Mental, Behavioral and
Neurodevelopmental Disorders.” In addition, the section title
for categories 317–319 was revised from “Mental Retardation”
to “Intellectual Disabilities.”
A new subcategory has been created to describe dementia,
unspecified (294.2). This subcategory is further expanded to the
fifth-digit level to describe with and without behavioral distur-
bance (294.21, 294.20).
