ICD-10-CM · Chapter 16 · P00–P96
P07.21
Extreme immaturity of newborn, gestational age less than 23 completed weeks
Certain conditions originating in the perinatal period
Quick facts
- Code
- P07.21
- Type
- Billable code
- ICD-10-CM chapter
- Chapter 16 — Certain conditions originating in the perinatal period
- Category
- P07 — Disorders of newborn related to short gestation and low birth weight, not elsewhere classified
- Specificity
- 5 characters
How coders use this code
ICD-10-CM P07.21 is a billable, fully specified code, so it can be reported directly on a claim to document a diagnosis of extreme immaturity of newborn, gestational age less than 23 completed weeks. Coders assign it when the chart documentation supports this level of detail, always matching to the most specific code available and verifying against the chapter-specific guidelines published annually by NCHS/CMS.
Related codes in P07
- P07Disorders of newborn related to short gestation and low birth weight, not elsewhere classified
- P07.0Extremely low birth weight newborn
- P07.00Extremely low birth weight newborn, unspecified weight
- P07.01Extremely low birth weight newborn, less than 500 grams
- P07.02Extremely low birth weight newborn, 500-749 grams
- P07.03Extremely low birth weight newborn, 750-999 grams
- P07.1Other low birth weight newborn
- P07.10Other low birth weight newborn, unspecified weight
- P07.14Other low birth weight newborn, 1000-1249 grams
- P07.15Other low birth weight newborn, 1250-1499 grams
- P07.16Other low birth weight newborn, 1500-1749 grams
- P07.17Other low birth weight newborn, 1750-1999 grams
- P07.18Other low birth weight newborn, 2000-2499 grams
- P07.2Extreme immaturity of newborn
- P07.20Extreme immaturity of newborn, unspecified weeks of gestation
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