ICD-9-CM

The following fifth-digit subclassification is for use with category 764 and codes 765.0 and 765.1 to denote birthweight:

0 unspecified [weight]

1 less than 500 grams

2 500-749 grams

3 750-999 grams

4 1,000-1,249 grams

5 1,250-1,499 grams

6 1,500-1,749 grams

7 1,750-1,999 grams

8 2,000-2,499 grams

9 2,500 grams and over

765 Disorders relating to short gestation and low birthweight Requires fifth digit. see beginning of section 764-779 for codes and definitions. Includes: the listed conditions, without further specification, as causes of mortality, morbidity, or additional care, in fetus or newborn
765.0: Extreme immaturity [0-9] Note: Usually implies a birthweight of less than 1,000 grams. Use additional code for weeks of gestation (765.20-765.29)
765.1: Other preterm infants [0-9] Note: Usually implies birthweight of 1,000-2,499 grams. Prematurity NOS Prematurity or small size, not classifiable to 765.0 or as "light-for-dates" in 764 Use additional code for weeks of gestation (765.20-765.29)
765.2: Weeks of gestation

765 Disorders relating to short gestation and low birthweight

Requires fifth digit. see beginning of section 764-779 for codes and definitions.

Includes:

the listed conditions, without further specification, as causes of mortality, morbidity, or additional care, in fetus or newborn

[0-9]

Note:

Usually implies a birthweight of less than 1,000 grams.

Use additional code for weeks of gestation (765.20-765.29)

[0-9]

Note:

Usually implies birthweight of 1,000-2,499 grams.

Prematurity NOS

Prematurity or small size, not classifiable to 765.0 or as "light-for-dates" in 764

Use additional code for weeks of gestation (765.20-765.29)

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