Update README.md

README.md

@@ -69,3 +69,123 @@ configs:
   - split: train
     path: data/train-*
 ---
+
+```
+icd10gm2025syst_kodes.txt - Codes of the ICD Systematics
+
+Field 1: Classification level, 1 character
+
+3 = Three-character
+4 = Four-character
+5 = Five-character
+Field 2: Position of the key number in the classification tree, 1 character
+
+T = Terminal key number (codable endpoint)
+N = Non-terminal key number (not a codable endpoint)
+Field 3: Type of four- and five-character codes
+
+X = Explicitly listed (pre-combined)
+S = By sub-classification (post-combined)
+Field 4: Chapter number, max. 2 characters
+
+Field 5: First three-character group code, 3 characters
+
+Field 6: Key number without any cross, up to 7 characters
+
+Field 7: Key number without hyphen, star, or exclamation mark, up to 6 characters
+
+Field 8: Key number without dot, hyphen, star, or exclamation mark, up to 5 characters
+
+Field 9: Class title, composed of parts of the titles of the three-character, four-character, and five-character codes, if available, up to 255 characters
+
+Field 10: Title of the three-character code, up to 255 characters
+
+Field 11: Title of the four-character code, if available, up to 255 characters
+
+Field 12: Title of the five-character code, if available, up to 255 characters
+
+Field 13: Use of the key number according to Paragraph 295
+
+P = Allowed for primary coding
+O = Allowed only as star key number
+Z = Allowed only as exclamation key number
+V = Not allowed for coding
+Field 14: Use of the key number according to Paragraph 301
+
+P = Allowed for primary coding
+O = Allowed only as star key number
+Z = Allowed only as exclamation key number
+V = Not allowed for coding
+Field 15: Reference to mortality list 1
+
+Field 16: Reference to mortality list 2
+
+Field 17: Reference to mortality list 3
+
+Field 18: Reference to mortality list 4
+
+Field 19: Reference to morbidity list
+
+Field 20: Gender reference of the key number
+
+9 = No gender reference
+M = Male
+W = Female
+Field 21: Type of error related to gender reference
+
+9 = Irrelevant
+K = Optional error
+Field 22: Lower age limit for a key number (A disease may occur from at least n completed days/years of life)
+
+9999 = Irrelevant
+t000 - t364 = From 0 days including fetal time to 364 days
+e.g., t000 = From birth (1st day of life) including fetal time
+t001 = From 1 completed day of life (from the 2nd day of life)
+t002 = From 2 completed days of life (from the 3rd day of life)
+etc. up to
+t028 = From 28 completed days of life (from the 29th day, from the 2nd month)
+etc. up to
+t364 = From 364 completed days of life (from the 365th day of life)
+j001 - j124 = From the 1st year to 124 years
+e.g., j001 = From 1 completed year of life (from the 2nd year, from the 365th day of life)
+j002 = From 2 completed years of life (from the 3rd year)
+j003 = From 3 completed years of life (from the 4th year)
+etc. up to
+j124 = From 124 completed years of life (from the 125th year)
+Field 23: Upper age limit for a key number (A disease may occur up to a maximum of m completed days/years of life)
+
+9999 = Irrelevant
+t000 - t364 = 0 days - up to 364 days
+e.g., t000 = fetal, before birth
+t001 = Up to 1 completed day of life (until the end of the 1st day of life)
+t002 = Up to 2 completed days of life (until the end of the 2nd day of life)
+etc. up to
+t364 = Up to 364 completed days of life (until the end of the 364th day)
+j001 - j124 = Up to 1 year – up to 124 years
+e.g., j001 = Up to 1 completed year of life (until the end of the 1st year, until the end of the 365th day)
+j002 = Up to 2 completed years of life (until the end of the 2nd year)
+etc. up to
+j124 = Up to 124 completed years of life (until the end of the 124th year)
+Field 24: Type of error related to age reference
+
+9 = Irrelevant
+M = Must error
+K = Optional error
+Field 25: Disease very rare in Central Europe?
+
+J = Yes (--> Can trigger optional error!)
+N = No
+Field 26: Key number populated with content?
+
+J = Yes
+N = No (--> Can trigger optional error!)
+Field 27: IfSG report, indicates that diagnoses coded with this key number require special attention to the doctor’s reporting obligation under the Infection Protection Act (IfSG)
+
+J = Yes
+N = No
+Field 28: IfSG laboratory, indicates that laboratory tests for these diagnoses may use the laboratory exclusion code of the EBM (32006)
+
+J = Yes
+N = No
+
+```