GB/T 14396-2016Classification and codes of diseases (English PDF)

3.1 Classification of diseases

The various diseases according to certain established principles into the category and the system approach.

5.1 Classification principles

Using the main cause of the main body, including the anatomical site, clinical manifestations and pathology for the classification of the basic principles of the axis.

5.2 Encoding form

The 3-digit code, 4-digit code, and 6-digit code are used in the form of "alphanumeric code", except for the morphological coding of the tumor. That is used Alphanumeric mixed coding system, the first one for the English alphabet, the last five for the Arabic numerals.

5.3 The first 3 bits are encoded

5.3.1 The coding range of the disease (including symptoms, signs and other ambiguities) is A00 ~ R99.

5.3.2 Damage and poisoning The coding range is S00 ~ T98.

5.3.3 Damage and poisoning The external cause of the coding range is V01 ~ Y98.

5.3.4 The range of factors affecting health status and exposure to health care institutions is Z00 to Z99.

5.3.5 Code for special purpose is U00 ~ U99.

5.3.6 Morphological coding of tumors using the English letter "M" plus 3 digits or 4 digits, part of the coding entries from ICD-O-3 In the M800 ~ M998. After 4 digits, add "/" and 1 digit, indicating the nature of the tumor.

a)/0. indicates benign tumor;

b)/1. said benign or malignant not sure (border vicious);

c)/2. represents carcinoma in situ;

d)/3. Reproductive tumors of the primary site;

e)/6. Indicates a malignant tumor of secondary site.

5.4 The first 4 bits are coded

For ICD-10 sub-head code. 4-digit sub-head code is a sub-classification of 3-bit code, also has a statistical classification significance.

Example of acute appendicitis with peritoneal abscess K35.1. See the 4-digit sub-table.

5.5 Spreading code (bits 5 and 6)

5.5.1 Extended rules

5.5.1.1 According to the anatomical site, etiology, clinical manifestations, pathology classification axis expansion.

5.5.1.2 to the anatomical site as the axis, according to the anatomical system from top to bottom, after the first, the range from large to small; organs and nervous system And so on, from top to bottom, from left to right, double in the former single after, from front to back, ranging from large to small.

5.5.1.3 to clinical manifestations, etiology, pathology as the axis, according to the alphabet A ~ Z order. The following is not the order of Pinyin A ~ Z, In the following order.

a) indicates the degree of acute, chronic, subacute, I, II, III;

b) figures .1,2,3, one, two, three;

c) Greek alphabet.

5.5.2 Breakdown code

Refers to 5-digit codes that appear in Chapter 13 of the ICD-10 Musculoskeletal System and Connective Tissue Disease, Chapter 19 Injury, Poisoning and Some other consequences of external causes, Chapter 20 of the external causes of disease and death. ICD-10 is a sample of the selective use of the code, in order to avoid the article Too much, in addition to 19, said open or closed the number of coding must be used, the rest do not use 5-bit encoding, that is, in addition to Chapter 19 5-digit code has a specific meaning, the other five-digit number of the chapter does not have a specific meaning.

5.5.3 6-digit extended code

6-digit expansion code refers to the ICD-10 in the original code to expand the number of 1 to 2 digits of the code, the expansion of the disease code to 6 digits.

The code with the tail number "00" is an extension of the original sub-code, which is equivalent to the residual encoding of this entry. The number of the tail is not "00" is increased Applicable to clinical diagnosis of the entry. Tumor morphological coding in the organization type coding site increased by 1 digit, can be in the original histological type Based on the breakdown.

5.6 Main code

The 6-digit extended code column has the main coding field, indicating that the code can be used as the main code, but also according to the majority of coding rules as a Plus code.

5.7 Additional coding

The 6-digit extended code column has an additional encoding bar indicating that the encoding can only be used as an additional code and can not be used as a primary encoding.